Fremont County GIS Maps

Fremont County Maps

The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.

County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.

Fremont County Population

Fremont County had 13,388 residents in 2020. That was 1.1% higher than in 2010. Fremont County added 1,569 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 7 people per square mile. Some of the county's most populated postal areas include Saint Anthony, Ashton and Island Park.

Population Trend in Fremont County ID

Fremont County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.

Fremont County Zip Codes

Fremont County has 6 zip codes. Some of the county's most populated zip codes include Saint Anthony (83445), Ashton (83420) and Island Park (83429). Saint Anthony is the largest zip by population, with about 7,411 residents or 55% of the county total. Together, the three largest zips account for about 81% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in Fremont County ID

Fremont County Zip Code populations and trends per most recent census data.

Fremont County Demographics

Fremont County has a median age of 39.9, which makes the county a little older than Idaho overall. About 24.1% of residents are under 18, while 17.8% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 31.9% of the population, which points to a solid working-age base. About 21.8% of adults have a bachelor's degree or higher, above the statewide figure of 31.2%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.

Key Demographics for Fremont County ID

Fremont County School Districts

Fremont County is served by 2 public school districts with 4,481 students enrolled in 2024. Several larger districts account for a substantial share of students across the county map area. Those three districts account for about 100% of public school enrollment in the map area. Total enrollment has grown modestly since 2017 across the districts shown on the county map.

Largest School Districts by Enrollment in Fremont County ID

Fremont County school district enrollment and trends per most recent NCES reporting data.

Fremont County Housing & Real Estate

Fremont County has a median home value of $281,800 and a median gross rent of $803. About 84% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Idaho median, while rents come in below the state average. In March 2026, the median listing price was $852,250 and homes spent about 132 days on the market.

Businesses in Fremont County, ID

Fremont County has 738 business listings across 260 categories. The largest categories in Fremont County business listings are Lodge (29, 3.9%), Parks & Recreation (21, 2.8%), and Cabin (21, 2.8%). The full Fremont County business listings dataset includes names, categories, addresses and contact details where available. Fremont County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in Fremont County, ID

Fremont County Business Listings

Fremont County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

Fremont County Basemaps

Fremont County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.

Preview a Live Package Demo

See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from Idaho — explore the full structure before you buy.