Franklin County GIS Maps
Franklin County, Idaho, has 14,194 residents and covers 663 square miles. The population grew 11% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Franklin County is 16041.
Preston is the county's largest population center. Franklin County also includes 6 zip codes, 3 public school districts and 10 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Franklin County Trends
- Population
- 14,194▴
- Median Home Value
- $304,000▴
- K-12 Enrollment
- 3,657▾
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Franklin 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.
Franklin County Population
Franklin County had 14,194 residents in 2020. That was 11% higher than in 2010. Franklin County added 2,865 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 21 people per square mile. Some of the county's most populated postal areas include Preston, Franklin and Weston.
Population Trend in Franklin County ID
Franklin County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Franklin County Zip Codes
Franklin County has 6 zip codes. Some of the county's most populated zip codes include Preston (83263), Franklin (83237) and Weston (83286). Preston is the largest zip by population, with about 9,928 residents or 70% of the county total. Together, the three largest zips account for about 91% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Franklin County ID
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 83263 | Preston | 9,928 | ▴ 7.2% |
| 83237 | Franklin | 1,559 | ▴ 36% |
| 83286 | Weston | 1,424 | ▴ 14.7% |
| 83228 | Clifton | 695 | ▴ 33.1% |
| 83232 | Dayton | 438 | ▾ -6.2% |
| Download all zip code data | |||
Franklin County Zip Code populations and trends per most recent census data.
Franklin County Demographics
Franklin County has a median age of 32.5, which makes the county a little younger than Idaho overall. About 30.9% of residents are under 18, while 14.1% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is Under 18 at about 30.9% of the population, which suggests the county has a notable share of children and family households. About 21.5% 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 Franklin County ID
Median Age
32.5
Under 18
30.9%
Age 65+
14.1%
Bachelor's+
21.5%
Franklin County School Districts
Franklin County is served by 3 public school districts with 3,657 students enrolled in 2024. The largest districts on the county map are Preston Joint 201, West Side Joint 202 and Grace Joint 148. Those three districts account for about 100% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, based on district totals from 2017 to 2024.
Largest School Districts by Enrollment in Franklin County ID
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Preston Joint School District 201 | 2,311 | 63.2% | ▾ -4% |
| West Side Joint School District 202 | 798 | 21.8% | ▾ -0.9% |
| Grace Joint School District 148 | 548 | 15% | ▴ 6% |
| Download all school district data | |||
Franklin County school district enrollment and trends per most recent NCES reporting data.
Franklin County Housing & Real Estate
Franklin County has a median home value of $304,000 and a median gross rent of $831. About 75% 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 $466,825 and homes spent about 88 days on the market.
Franklin County Housing Mix
Franklin County housing mix: owner, renter and vacant units.
Franklin County Housing Trends
Franklin County median home value and rent trend (last 5 years).
Businesses in Franklin County, ID
Franklin County has 499 business listings across 233 categories. The largest categories in Franklin County business listings are Churches & Religious Organizations (18, 3.6%), Gas Stations (13, 2.6%), and Real Estate Agents (8, 1.6%). The full Franklin County business listings dataset includes names, categories, addresses and contact details where available. Franklin County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Franklin County, ID
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 18 | 3.6% |
| Gas Stations | 13 | 2.6% |
| Real Estate Agents | 8 | 1.6% |
| Structure And Geography | 8 | 1.6% |
| Insurance Agencies | 7 | 1.4% |
| Livestock Breeder | 7 | 1.4% |
| Auto Repair | 7 | 1.4% |
| Farm | 7 | 1.4% |
| Home Health Care | 7 | 1.4% |
| Convenience Stores | 7 | 1.4% |
Franklin County Business Listings
| Business | Category | City |
|---|---|---|
| Travis M Kunz CPA | Accountant | Preston |
| Oneida Narrows | Active Life | |
| Preston Chiropractic Clinic | Acupuncture | Preston |
| PTI Stock Yard | Agricultural Service | Preston |
| Bosen Land & Livestock | Agriculture | Preston |
| Preston Airport | Airport | Preston |
| Franklin County Ambulance | Ambulance And Ems Services | Preston |
| Tattles Bar & Grill | American Restaurants | Preston |
| DMR Gun & Knife Works | Amusement Park | Preston |
| Animal Medical Clinic | Animal Hospital | Preston |
| Download Franklin County business listings | ||
Franklin County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Franklin County Basemaps
Franklin 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.
Get the Full Franklin County Data Package
This page shows a preview of what's included in the Franklin County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Franklin County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.