Andrew County GIS Maps
Andrew County, Missouri, has 18,135 residents and covers 432.6 square miles. The population grew 4.9% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Andrew County is 29003.
Savannah is the county's largest population center. Andrew County also includes 10 zip codes, 5 public school districts and 24 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.
Andrew County Trends
- Population
- 18,135▴
- Median Home Value
- $196,200▴
- K-12 Enrollment
- 3,370▴
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.
Andrew 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.
Andrew County Population
Andrew County had 18,135 residents in 2020. That was 4.9% higher than in 2010. Andrew County added 1,643 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 42 people per square mile. Some of the county's most populated postal areas include Saint Joseph, Savannah and Union Star.
Population Trend in Andrew County MO
Andrew County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Andrew County Zip Codes
Andrew County has 10 zip codes. Some of the county's most populated zip codes include Saint Joseph (64505), Savannah (64485) and Union Star (64494). Saint Joseph is the largest zip by population, with about 13,261 residents or 73% of the county total. Together, the three largest zips account for about 125% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Andrew County MO
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 64505 | Saint Joseph | 13,261 | ▴ 0.8% |
| 64485 | Savannah | 8,448 | ▴ 4% |
| 64494 | Union Star | 975 | ▾ -4.2% |
| 64421 | Amazonia | 827 | ▾ -13.1% |
| 64436 | Cosby | 776 | ▾ -0.6% |
| Download all zip code data | |||
Andrew County Zip Code populations and trends per most recent census data.
Andrew County Demographics
Andrew County has a median age of 42.1, which makes the county a little older than Missouri overall. About 22.6% of residents are under 18, while 20.6% 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 29.4% of the population, which points to a solid working-age base. About 26.9% 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 Andrew County MO
Median Age
42.1
Under 18
22.6%
Age 65+
20.6%
Bachelor's+
26.9%
Andrew County School Districts
Andrew County is served by 5 public school districts with 3,370 students enrolled in 2024. The largest districts on the county map are Savannah R-III, King City R-I and North Andrew County R-VI. Those three districts account for about 89% 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 Andrew County MO
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Savannah R-III School District | 2,390 | 70.9% | ▴ 0.9% |
| King City R-I School District | 336 | 10% | ▾ -0.6% |
| North Andrew County R-VI School District | 273 | 8.1% | ▾ -2.2% |
| Nodaway-Holt R-VII School District | 205 | 6.1% | ▴ 4.6% |
| Union Star R-II School District | 166 | 4.9% | ▴ 2.5% |
| Download all school district data | |||
Andrew County school district enrollment and trends per most recent NCES reporting data.
Andrew County Housing & Real Estate
Andrew County has a median home value of $196,200 and a median gross rent of $944. About 77% 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 $292,400 and homes spent about 41 days on the market.
Andrew County Housing Mix
Andrew County housing mix: owner, renter and vacant units.
Andrew County Housing Trends
Andrew County median home value and rent trend (last 5 years).
Businesses in Andrew County, MO
Andrew County has 543 business listings across 230 categories. The largest categories in Andrew County business listings are Churches & Religious Organizations (23, 4.2%), Gas Stations (17, 3.1%), and Auto Repair (16, 2.9%). The full Andrew County business listings dataset includes names, categories, addresses and contact details where available. Andrew County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Andrew County, MO
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 23 | 4.2% |
| Gas Stations | 17 | 3.1% |
| Auto Repair | 16 | 2.9% |
| Event Planning | 12 | 2.2% |
| Contractors | 11 | 2.0% |
| Community & Nonprofits | 10 | 1.8% |
| Pizza Restaurants | 10 | 1.8% |
| Insurance Agencies | 10 | 1.8% |
| Elementary School | 9 | 1.7% |
| Firework Retailer | 9 | 1.7% |
Andrew County Business Listings
| Business | Category | City |
|---|---|---|
| Wheeler Farms At Hoot Owl Hill | Accommodation | Bolckow |
| The Outskirts | Adult Entertainment | St Joseph |
| Social Lyft Media | Advertising Agency | St Joseph |
| Miller Welding | Agricultural Service | Rosendale |
| El Sela Ranch LLC | Agriculture | Rea |
| Shelton Siding Co., Inc. | Altering And Remodeling Contractor | Savannah |
| Andrew County Ambulance District | Ambulance And Ems Services | Savannah |
| Jesse James Antique Mall | Antique Store | St Joseph |
| Cedar Tree Apartments | Apartments | Savannah |
| Bitcoin Depot | ATMs | Country Club Village |
| Download Andrew County business listings | ||
Andrew County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Andrew County Basemaps
Andrew 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 Andrew County Data Package
This page shows a preview of what's included in the Andrew 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 Andrew County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.