Boise County GIS Maps
Boise County, Idaho, has 7,610 residents across 10,928 parcels and covers 1,899.6 square miles. The population grew 8.3% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Boise County is 16015.
Horseshoe Bend is the county's largest population center. Boise County also includes 6 zip codes, 4 public school districts and 12 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 parcel data, population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.
Boise County Trends
- Population
- 7,610▴
- Median Home Value
- $424,100▴
- K-12 Enrollment
- 22,824▾
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.
Boise 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.
Boise County Parcels
Boise County has 10,928 mapped parcels covering 683,896 acres. The median lot size is 1.56 acres. 1,949 parcels are 10 acres or larger. The records carry 6,867 distinct owner names. About 8% of parcels list an owner mailing address outside Idaho. Owner names, mailing addresses and lot sizes are on nearly every parcel. Site addresses reach 57.8%. Browse the interactive Boise County Parcel viewer here.
Boise County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 10,928 | 100% |
| Owner name | 10,901 | 99.8% |
| Owner mailing address | 10,883 | 99.6% |
| Site address | 6,315 | 57.8% |
| Land use code | 0 | 0% |
| Land use description | 0 | 0% |
| Assessed value | 0 | 0% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 10,928 | 100% |
| Parcel boundary | 10,928 | 100% |
| Download all Boise County parcels. | ||
Field coverage measured across all Boise County parcel records.
Boise County Population
Boise County had 7,610 residents in 2020. That was 8.3% higher than in 2010. Boise County added 940 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 4 people per square mile. Some of the county's most populated postal areas include Garden Valley, Horseshoe Bend and Idaho City.
Population Trend in Boise County ID
Boise County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Boise County Zip Codes
Boise County has 6 zip codes. Some of the county's most populated zip codes include Garden Valley (83622), Horseshoe Bend (83629) and Idaho City (83631). Garden Valley is the largest zip by population, with about 2,076 residents or 27% of the county total. Together, the three largest zips account for about 67% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Boise County ID
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 83622 | Garden Valley | 2,076 | ▴ 19.5% |
| 83629 | Horseshoe Bend | 1,731 | ▴ 0.6% |
| 83631 | Idaho City | 1,317 | ▾ -1.2% |
| 83637 | Garden Valley | 270 | ▴ 31.1% |
| 83666 | Idaho City | 54 | ▴ 3.8% |
| Download all zip code data | |||
Boise County Zip Code populations and trends per most recent census data.
Boise County Demographics
Boise County has a median age of 53.5, which makes the county a little older than Idaho overall. About 15.4% of residents are under 18, while 27.3% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 45 to 64 at about 27.5% of the population, which points to a solid working-age base. About 29.9% 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 Boise County ID
Median Age
53.5
Under 18
15.4%
Age 65+
27.3%
Bachelor's+
29.9%
Boise County School Districts
Boise County is served by 4 public school districts with 22,824 students enrolled in 2024. The largest districts on the county map are Boise City Independent 1, Basin 72 and Garden Valley 71. Those three districts account for about 99% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in Boise County ID
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Boise City Independent School District 1 | 22,134 | 97% | ▾ -1.3% |
| Basin School District 72 | 299 | 1.3% | ▾ -13.8% |
| Garden Valley School District 71 | 221 | 1% | ▾ -13.7% |
| Horseshoe Bend School District 73 | 170 | 0.7% | ▾ -22% |
| Download all school district data | |||
Boise County school district enrollment and trends per most recent NCES reporting data.
Boise County Housing & Real Estate
Boise County has a median home value of $424,100 and a median gross rent of $854. About 88% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Idaho median, while rents come in below the state average. In March 2026, the median listing price was $679,675 and homes spent about 42 days on the market.
Boise County Housing Mix
Boise County housing mix: owner, renter and vacant units.
Boise County Housing Trends
Boise County median home value and rent trend (last 5 years).
Businesses in Boise County, ID
Boise County has 458 business listings across 181 categories. The largest categories in Boise County business listings are Lake (33, 7.2%), Structure And Geography (27, 5.9%), and Mountain (21, 4.6%). The full Boise County business listings dataset includes names, categories, addresses and contact details where available. Boise County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Boise County, ID
| Category | Businesses | Share |
|---|---|---|
| Lake | 33 | 7.2% |
| Structure And Geography | 27 | 5.9% |
| Mountain | 21 | 4.6% |
| Campgrounds & RV Parks | 15 | 3.3% |
| Lodge | 11 | 2.4% |
| Churches & Religious Organizations | 10 | 2.2% |
| Gas Stations | 8 | 1.7% |
| American Restaurants | 7 | 1.5% |
| River | 7 | 1.5% |
| Holiday Rental Home | 7 | 1.5% |
Boise County Business Listings
| Business | Category | City |
|---|---|---|
| Star Ranch | Accommodation | Idaho City |
| Youren Arena | Active Life | Garden Valley |
| Garden Valley Airport | Airport | Boise County |
| East Boise County Ambulance District | Ambulance And Ems Services | Idaho City |
| Locking Horns Riverside Restaurant | American Restaurants | Horseshoe Bend |
| Let’er Buck Adventures | Amusement Park | Lowman |
| Old Crouch Mercantile Exchange Antique and Craft Mall | Antique Store | Crouch |
| BoCo Collectibles | Art Gallery | Idaho City |
| Rocky Canyon Tileworks | Arts And Crafts | Boise |
| Idaho Sleigh Rides | Arts And Entertainment | Garden Valley |
| Download Boise County business listings | ||
Boise County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Boise County Basemaps
Boise 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 Boise County Data Package
This page shows a preview of what's included in the Boise 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 parcels, 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 Boise County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.