Audrain County GIS Maps
Audrain County, Missouri, has 24,962 residents and covers 692.2 square miles. The population declined 2.2% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Audrain County is 29007.
Mexico is the county's largest population center. Audrain County also includes 9 zip codes, 8 public school districts and 26 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.
Audrain County Trends
- Population
- 24,962▾
- Median Home Value
- $121,600▴
- K-12 Enrollment
- 9,069▴
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.
Audrain 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.
Audrain County Population
Audrain County had 24,962 residents in 2020. That was 2.2% lower than in 2010. Audrain County had 891 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 36 people per square mile. Some of the county's most populated postal areas include Mexico, Centralia and Vandalia.
Population Trend in Audrain County MO
Audrain County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Audrain County Zip Codes
Audrain County has 9 zip codes. Some of the county's most populated zip codes include Mexico (65265), Centralia (65240) and Vandalia (63382). Mexico is the largest zip by population, with about 15,238 residents or 61% of the county total. Together, the three largest zips account for about 113% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Audrain County MO
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 65265 | Mexico | 15,238 | ▾ -1.1% |
| 65240 | Centralia | 8,292 | ▴ 9.2% |
| 63382 | Vandalia | 4,597 | ▾ -6.1% |
| 63352 | Laddonia | 1,017 | ▾ -5.7% |
| 65264 | Martinsburg | 792 | ▴ 10% |
| Download all zip code data | |||
Audrain County Zip Code populations and trends per most recent census data.
Audrain County Demographics
Audrain County has a median age of 40.3, which makes the county a little older than Missouri overall. About 22.8% of residents are under 18, while 18.6% 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 31.3% of the population, which points to a solid working-age base. About 16.1% of adults have a bachelor's degree or higher, above the statewide figure of 31.9%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Audrain County MO
Median Age
40.3
Under 18
22.8%
Age 65+
18.6%
Bachelor's+
16.1%
Audrain County School Districts
Audrain County is served by 8 public school districts with 9,069 students enrolled in 2024. The largest districts on the county map are Sturgeon R-V, Mexico 59 and Centralia R-VI. Those three districts account for about 72% 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 Audrain County MO
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Sturgeon R-V School District | 2,773 | 30.6% | ▴ 25.6% |
| Mexico 59 School District | 2,374 | 26.2% | ▾ -2.1% |
| Centralia R-VI School District | 1,343 | 14.8% | ▴ 2.2% |
| North Callaway County R-I School District | 972 | 10.7% | ▾ -3% |
| Van-Far R-I School District | 571 | 6.3% | ▴ 0.4% |
| Download all school district data | |||
Audrain County school district enrollment and trends per most recent NCES reporting data.
Audrain County Housing & Real Estate
Audrain County has a median home value of $121,600 and a median gross rent of $698. About 73% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Missouri median, while rents come in below the state average. In March 2026, the median listing price was $172,125 and homes spent about 47 days on the market.
Audrain County Housing Mix
Audrain County housing mix: owner, renter and vacant units.
Audrain County Housing Trends
Audrain County median home value and rent trend (last 5 years).
Businesses in Audrain County, MO
Audrain County has 1,011 business listings across 331 categories. The largest categories in Audrain County business listings are Churches & Religious Organizations (48, 4.7%), Gas Stations (22, 2.2%), and Convenience Stores (19, 1.9%). The full Audrain County business listings dataset includes names, categories, addresses and contact details where available. Audrain County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Audrain County, MO
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 48 | 4.7% |
| Gas Stations | 22 | 2.2% |
| Convenience Stores | 19 | 1.9% |
| Insurance Agencies | 19 | 1.9% |
| Medical Offices | 19 | 1.9% |
| Auto Repair | 18 | 1.8% |
| Farm | 14 | 1.4% |
| Banks & Credit Unions | 13 | 1.3% |
| Contractors | 13 | 1.3% |
| Financial Service | 12 | 1.2% |
Audrain County Business Listings
| Business | Category | City |
|---|---|---|
| Mexico Apartments | Accommodation | Mexico |
| Robert Cox CPA, P.C. | Accountant | Mexico |
| Camp Vittone | Active Life | Mexico |
| Hcada Mexico | Addiction Rehabilitation Center | Mexico |
| Ad Finder | Advertising Agency | Mexico |
| Service & Supply Cooperative | Agricultural Cooperatives | Vandalia |
| Ennis Implement Co | Agricultural Service | Mexico |
| Martinsburg Farmers Elevator | Agriculture | Martinsburg |
| FCS Financial | Agriculture Association | Mexico |
| Zenith Aircraft Company | Aircraft Dealer | Mexico |
| Download Audrain County business listings | ||
Audrain County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Audrain County Basemaps
Audrain 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 Audrain County Data Package
This page shows a preview of what's included in the Audrain 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 Audrain County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.