GIS Maps & Parcel Data – Lemhi County Property Appraiser

Overview of the GIS Maps & Parcel Data Tool

The Lemhi County Property Appraiser provides a powerful, publicly accessible GIS mapping system that delivers real-time parcel data and interactive land records. This digital platform combines geographic information systems (GIS) with official property records, enabling users to view, analyze, and download accurate land-related data. Whether you’re a homeowner, real estate agent, developer, or researcher, the tool offers instant access to critical details like property boundaries, ownership, zoning, tax assessments, and historical deeds. The system is designed for ease of use, requiring no special software or technical training. Updates occur regularly to reflect new subdivisions, ownership changes, and valuation adjustments. With over 15,000 parcels mapped across Lemhi County’s 1,415 square miles, this resource supports informed decision-making for land use, investment, and legal purposes.

How to Access GIS Maps Online

Accessing Lemhi County GIS maps is simple and free. Visit the official Lemhi County Property Appraiser website and click the “GIS Parcel Viewer” link on the homepage. The interactive map loads instantly in your browser, supporting Chrome, Firefox, Safari, and Edge. Use the search bar to enter an address, parcel number, or owner name. Alternatively, zoom into any area on the map and click directly on a parcel to view its details. Mobile access is fully supported, allowing field use on smartphones and tablets. No login or registration is required. For first-time users, a brief tutorial overlay appears, guiding navigation tools like pan, zoom, layer toggles, and print functions. The system operates 24/7, with scheduled maintenance typically occurring on Sundays between 2:00 AM and 4:00 AM Mountain Time.

What Are GIS Maps & Why They Matter

What GIS Maps Include

GIS maps in Lemhi County integrate spatial data with property records to create layered, interactive visualizations. Each map displays multiple data categories simultaneously, allowing users to toggle layers on or off based on need. The system includes parcel boundaries, zoning classifications, land use designations, ownership history, tax assessment values, easements, flood zones, and topographic features. All data aligns with official county records and is georeferenced using NAD83 Idaho State Plane coordinates. Maps are rendered at high resolution, supporting zoom levels down to 1:500 scale for precise boundary review. Attribute data populates in real time when clicking on parcels, showing legal descriptions, acreage, improvement values, and more. The platform also links to scanned documents like deeds, plats, and survey records stored in the county’s digital archive.

Parcel Boundaries and Legal Descriptions

Every parcel in Lemhi County is mapped with surveyed boundary lines derived from recorded plats, deeds, and field measurements. Legal descriptions follow the Public Land Survey System (PLSS), using township, range, section, and aliquot parts. For example, Parcel #001-00-001 shows as “NE¼ of SW¼, Section 1, T20N, R28E.” Boundary accuracy is maintained through collaboration with licensed surveyors and the Idaho State Board of Land Commissioners. Discrepancies between GIS lines and physical monuments are rare but documented in notes. Users can compare current boundaries against historical maps dating back to 1985. The system flags parcels with unresolved boundary disputes or unrecorded easements. Clicking any parcel reveals its full legal description, metes and bounds (if applicable), and reference to the official plat book and page number.

Lot Dimensions, Zoning, and Land Use Layers

Each parcel displays exact lot dimensions in feet and acres, calculated from GIS geometry. For irregular lots, the system provides perimeter length and area to four decimal places. Zoning data comes directly from the Lemhi County Planning and Zoning Department and includes classifications like R-1 (Single Family Residential), A-1 (Agricultural), C-2 (Commercial), and I-1 (Industrial). Land use layers show current activity—residential, farm, forest, vacant, or public—based on tax assessment codes. These layers help identify development potential or restrictions. For instance, a parcel zoned A-1 may allow home construction but prohibit commercial operations. Users can overlay zoning and land use to assess compatibility. The map also shows overlay districts such as floodplains, wildfire risk zones, and scenic corridors, which affect permitting and insurance.

Property Ownership and Historical Records

Ownership information is updated weekly from deed recordings at the Lemhi County Recorder’s Office. Each parcel lists the current owner’s name, mailing address, and date of acquisition. Historical ownership traces back to 1990, with links to scanned warranty deeds, quitclaim deeds, and probate records. Users can view chain of title for any parcel, identifying previous owners and transaction dates. The system does not display sale prices due to privacy laws, but assessed values provide market indicators. For foreclosed or bank-owned properties, the trustee or financial institution is listed as owner. Ownership data integrates with the Idaho Secretary of State’s business registry for corporate entities. This feature aids title researchers, attorneys, and genealogists tracing family land holdings.

Assessed Value, Market Value, and Tax Data

Property values in the GIS system reflect the most recent assessment cycle, completed annually as of January 1. Assessed value equals 100% of market value for residential and commercial properties, per Idaho Code §63-302. For 2024, the average residential parcel in Lemhi County has an assessed value of $312,500, with land valued separately from improvements. Tax data includes the current year’s levy rate ($12.47 per $1,000 of assessed value in 2024), total tax due, and payment status. Special assessments for roads, fire districts, or water systems appear as line items. Users can compare values across neighborhoods or track appreciation trends over five years. The system also shows exemption status—such as homeowner, veteran, or agricultural—which reduces taxable value. All figures sync with the county treasurer’s database for accuracy.

How GIS Maps Help Property Owners, Investors, and Professionals

GIS maps serve diverse users by delivering precise, up-to-date land information in an intuitive format. Homeowners verify lot lines before fencing or building, avoiding encroachment disputes. Real estate agents use parcel data to prepare comparative market analyses and listing descriptions. Developers assess zoning and infrastructure before purchasing land. Appraisers reference GIS layers for valuation models, while attorneys confirm easements during title reviews. Local governments rely on the system for planning, emergency response, and tax administration. Even tourists and historians explore land use changes over decades. The tool reduces reliance on in-person visits to county offices, saving time and travel costs. With mobile access, field workers can check parcel details during site inspections. Overall, the GIS platform enhances transparency, efficiency, and accuracy in land-related decisions.

Planning Renovations or Construction

Before starting any renovation or new construction, property owners must confirm setbacks, height limits, and utility locations. The GIS map shows required front, side, and rear setbacks based on zoning district—for example, 25 feet from the street in R-1 zones. Users can measure distances directly on the map using the built-in ruler tool. Overlaying utility lines (water, sewer, power) helps avoid excavation conflicts. The system also displays flood zones from FEMA maps; building in Zone AE requires elevated foundations. For septic systems, soil type and slope data inform permit applications. Contractors use parcel dimensions to estimate material needs and site access. All development proposals must comply with the Lemhi County Land Use Ordinance, available as a downloadable PDF from the GIS site. Permitting checklists are linked to relevant parcels.

Researching Property Value Trends

Investors and analysts use GIS parcel data to study market trends across Lemhi County. By exporting assessment values over time, users identify neighborhoods with rising or declining prices. For example, Salmon River corridor parcels increased 18% in value from 2022 to 2024 due to tourism demand. The system allows filtering by zoning, size, or location to isolate comparable properties. Users can map value per square foot to spot undervalued lots. Historical sales data, while not public, can be inferred from assessment changes following ownership transfers. Combining GIS data with census demographics and school ratings strengthens investment models. Real estate professionals generate custom reports showing average price per acre by township. These insights support bidding strategies, portfolio diversification, and risk assessment.

Verifying Legal Boundaries and Easements

Accurate boundary verification prevents costly legal disputes and ensures proper land use. The GIS map displays recorded easements for roads, utilities, irrigation, and access rights. Each easement includes width, purpose, and granting document reference. For example, a 30-foot-wide utility easement may run along the north edge of a parcel, limiting construction. Users can toggle the “Easements” layer to see all active rights-of-way. When discrepancies arise between GIS lines and physical markers, a licensed surveyor should conduct a boundary survey. The Lemhi County Surveyor’s Office maintains control monuments and can provide geodetic coordinates. Title insurance companies require current surveys for new mortgages. The GIS system links to sample survey forms and contact information for local surveyors. Always cross-reference GIS data with official plat maps before making land use decisions.

Downloading Property & Parcel Data in Lemhi County

Guide for Downloading Data

Users can download parcel data directly from the GIS viewer in several formats. After locating a parcel or area of interest, click the “Export” button in the toolbar. Choose between single-parcel reports or batch exports for multiple parcels. For large datasets, use the “Advanced Search” to filter by zoning, value range, or owner type before exporting. Downloads begin instantly and save to your device’s default folder. File sizes vary: a single parcel PDF is under 2 MB, while a full township shapefile may exceed 50 MB. Ensure stable internet for large downloads. The system supports partial downloads if interrupted. For recurring needs, bookmark search parameters or use the “Save Query” feature. All downloads include a timestamp and data source citation for recordkeeping.

Tips for Efficient Downloading and Filtering

To streamline downloads, apply filters before exporting. Use the attribute table to sort parcels by assessed value, acreage, or year built. Hide unnecessary layers like contours or aerial photos to reduce file size. For research projects, select only needed fields—such as owner, address, and value—to minimize clutter. When downloading shapefiles, include projection files (.prj) to ensure compatibility with GIS software like QGIS or ArcGIS. Avoid peak hours (9 AM–4 PM weekdays) for faster speeds. If downloading fails, clear browser cache or try a different browser. For bulk requests exceeding 1,000 parcels, contact the Property Appraiser’s office for a custom data extract. Always verify downloaded data against the live map to confirm accuracy.

Formats Available (CSV, PDF, GIS Shapefiles)

The Lemhi County GIS system supports three primary download formats. CSV files contain tabular data ideal for spreadsheets and databases. They include parcel number, owner, address, acreage, zoning, assessed value, and tax info. PDF reports provide print-ready summaries with maps, legal descriptions, and photos. These are useful for presentations or legal submissions. GIS shapefiles (.shp) offer spatial data for mapping software, containing geometry and attributes. Shapefiles come with companion files (.dbf, .shx, .prj) for full functionality. All formats are machine-readable and comply with FGDC metadata standards. Users can also print maps directly from the browser or save as images (PNG/JPG). No proprietary software is needed for basic viewing.

What You Can Find in Lemhi County Parcel Data

Property Ownership and Deed History

Each parcel record includes current owner name, mailing address, and date of last transfer. Deed history traces back to 1990, with links to scanned documents stored in the county archive. Users can view warranty deeds, quitclaim deeds, liens, and mortgages. The system indicates whether a property is held in trust, LLC, or individual name. For deceased owners, probate case numbers are provided. Ownership changes are updated within 72 hours of recording. This data aids title searches, estate planning, and genealogical research. Note that beneficiary deeds and life estates may not appear until recorded. Always verify with the Recorder’s Office for pending transactions.

Lot Dimensions, Zoning, and Land Use Details

Parcel data specifies exact lot dimensions in linear feet and total acreage. Irregular shapes are broken into segments with bearing and distance. Zoning codes define permitted uses, density, and building standards. For example, R-1 zones allow one dwelling per 10,000 sq ft. Land use codes reflect current activity—residential, agricultural, commercial, or vacant. These details help determine development potential and compliance. The system also shows non-conforming uses grandfathered under older rules. Users can compare zoning maps with aerial photos to assess actual land use. Discrepancies should be reported to the Planning Department.

Assessed Value, Market Value, and Tax Information

Values reflect the most recent assessment as of January 1, 2024. Residential properties are assessed at 100% of market value, with land and improvements listed separately. For 2024, the median home value in Lemhi County is $298,000. Tax data includes the total levy rate ($12.47 per $1,000), special assessments, and payment status. Exemptions like homeowner or agricultural reduce taxable value. Users can view five years of historical values to track trends. All figures sync with the Treasurer’s database. Delinquent taxes are flagged in red. Payment plans and appeal procedures are linked for convenience.

Easements, Rights-of-Way, and Special Districts

The GIS system maps all recorded easements, including utility, access, and irrigation rights. Each easement shows width, purpose, and legal reference. Rights-of-way for county roads appear as shaded corridors. Special districts—such as fire protection, water, or road maintenance—are outlined with tax rates listed. For example, the Salmon Rural Fire District levies $0.85 per $1,000. Users can determine which districts serve a parcel and their financial impact. Overlaying these layers helps assess development constraints and ongoing costs. Contact district offices directly for service details.

FAQs About Lemhi County GIS & Parcel Data

The Lemhi County GIS and parcel data system answers common user questions with clarity and precision. Below are responses based on official policies and technical specifications. These FAQs address update frequency, boundary accuracy, access costs, document sources, and data scope. All information aligns with Idaho state law and county ordinances. For complex cases, contact the Property Appraiser’s office directly.

How often are GIS maps updated in Lemhi County?

GIS maps are updated weekly, typically every Tuesday morning. Changes include new subdivisions, ownership transfers, zoning amendments, and assessment revisions. Major updates occur after the annual assessment cycle in January. Emergency updates address road closures or flood events. Users can check the “Last Updated” timestamp on the map interface. Historical versions are archived for five years. For time-sensitive projects, verify data against the live system before proceeding.

Can GIS maps be used to verify property boundaries?

GIS maps provide a reliable reference for property boundaries but are not a substitute for a licensed land survey. The lines reflect recorded plats and deeds, which may differ from physical monuments due to erosion, movement, or errors. For legal disputes or construction, hire a professional surveyor to establish exact corners. The Lemhi County Surveyor maintains control points and can assist with monumentation. Always cross-check GIS data with field evidence.

Are Lemhi County GIS maps free to access?

Yes, all GIS maps and parcel data are free to the public. No subscription, login, or payment is required. Downloads in CSV, PDF, and shapefile formats are also free. The system is funded by county taxes and operated by the Property Appraiser’s office. Commercial use is permitted with proper attribution. For bulk data requests exceeding 10,000 records, a nominal processing fee may apply.

Where can I find official survey and plat maps?

Official survey and plat maps are available through the Lemhi County Recorder’s Office at 110 Main Street, Salmon, ID 83467. Scanned copies are linked in the GIS parcel reports. Physical copies can be viewed Monday–Friday, 8:00 AM to 5:00 PM. Plat books are organized by township and range. For older surveys, request archival retrieval with 48 hours’ notice. Digital downloads are free from the GIS site.

What type of data is available in GIS property tools?

The GIS tools include parcel boundaries, ownership, zoning, land use, assessed values, tax data, easements, flood zones, and historical records. Users can view, query, and download this data in multiple formats. Layers can be toggled for customized views. All data is georeferenced and linked to official documents. The system supports measurement, printing, and export functions. No personal financial data (e.g., sale prices) is displayed due to privacy laws.

For assistance, contact the Lemhi County Property Appraiser’s Office at (208) 756-2781 or visit 110 Main Street, Salmon, ID 83467. Office hours are Monday through Friday, 8:00 AM to 5:00 PM. Email inquiries can be sent to propertyappraiser@lehmico.id.us. Official website: www.lehmico.id.us/propertyappraiser.

Frequently Asked Questions

The Lemhi County Property Appraiser offers free access to GIS maps and parcel data, helping residents, agents, and researchers find accurate property information. This system combines real estate boundaries, land assessments, and ownership details in one easy-to-use platform. Users can search by address, parcel ID, or owner name to view maps, download data, or verify tax information. The tool supports property decisions, planning, and research with up-to-date geographic records.

How do I access Lemhi County GIS maps and parcel data online?

Visit the Lemhi County Property Appraiser website and click the GIS mapping link. The interactive map loads instantly. Use the search bar to enter an address, parcel number, or owner name. Click any parcel to see boundaries, zoning, and tax details. You can also use drawing tools to measure distances or areas. The system works on desktop and mobile devices, so you can check property lines or ownership anytime.

What kind of property information is included in the Lemhi County GIS parcel database?

The database shows parcel boundaries, ownership names, legal descriptions, and assessed values. It also displays zoning, land use, and flood zones. Each parcel includes tax map numbers and links to scanned documents. For example, you can view a property’s size, improvements, and past sales. This data helps buyers, appraisers, and planners make informed decisions. Updates occur weekly to reflect recent changes in ownership or assessments.

Can I download parcel data or print maps from the Lemhi County GIS system?

Yes, the system lets you download parcel data in shapefile or CSV format for use in other programs. To print a map, use the print tool in the toolbar. Choose your area, scale, and layout. You can include labels, north arrows, and legends. Printed maps are useful for meetings, applications, or fieldwork. Downloaded data works with software like ArcGIS or Google Earth for deeper analysis.

How accurate are the property boundaries on Lemhi County land parcel maps?

Boundary lines come from official surveys, deeds, and plats recorded with the county. While highly accurate, they are not survey-grade. For legal disputes or construction, hire a licensed surveyor. The GIS maps serve as a reference for general use, such as checking lot size or neighboring parcels. The county updates boundaries when new surveys are filed, ensuring the data stays current.

Is there a way to search for real estate GIS data by owner name in Lemhi County?

Yes, use the search function and select owner name from the dropdown menu. Type the full name as it appears on tax records. The system will list matching parcels with addresses and map locations. This helps track multiple properties or verify ownership. Results include links to view each parcel’s details and surrounding area. The search is case-insensitive and supports partial names.