Clayton County GIS Maps
Clayton County, Iowa, has 17,043 residents and covers 778.5 square miles. The population declined 6% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Clayton County is 19043.
Guttenberg is the county's largest population center. Clayton County also includes 15 zip codes, 7 public school districts and 45 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.
Clayton County Trends
- Population
- 17,043▾
- Median Home Value
- $155,700▴
- K-12 Enrollment
- 6,209▴
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.
Clayton 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.
Clayton County Population
Clayton County had 17,043 residents in 2020. That was 6% lower than in 2010. Clayton County had 1,635 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 22 people per square mile. Some of the county's most populated postal areas include Guttenberg, Strawberry Point and Elkader.
Population Trend in Clayton County IA
Clayton County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Clayton County Zip Codes
Clayton County has 15 zip codes. Some of the county's most populated zip codes include Guttenberg (52052), Strawberry Point (52076) and Elkader (52043). Guttenberg is the largest zip by population, with about 2,955 residents or 17% of the county total. Together, the three largest zips account for about 42% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Clayton County IA
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 52052 | Guttenberg | 2,955 | ▾ -5.8% |
| 52076 | Strawberry Point | 2,123 | ▾ -7.5% |
| 52043 | Elkader | 2,047 | ▾ -11.8% |
| 52042 | Edgewood | 1,828 | ▾ -8.6% |
| 52157 | Mc Gregor | 1,645 | ▾ -10% |
| Download all zip code data | |||
Clayton County Zip Code populations and trends per most recent census data.
Clayton County Demographics
Clayton County has a median age of 46.4, which makes the county a little older than Iowa overall. About 21.7% of residents are under 18, while 24.3% 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 25.6% of the population, which points to a solid working-age base. About 15.7% of adults have a bachelor's degree or higher, above the statewide figure of 30.9%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Clayton County IA
Median Age
46.4
Under 18
21.7%
Age 65+
24.3%
Bachelor's+
15.7%
Clayton County School Districts
Clayton County is served by 7 public school districts with 6,209 students enrolled in 2024. The largest districts on the county map are Clayton Ridge Community, North Fayette Valley Community and MFL MarMac Community. Those three districts account for about 64% 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 Clayton County IA
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Clayton Ridge Community School District | 2,066 | 33.3% | ▴ 16.5% |
| North Fayette Valley Community School District | 1,032 | 16.6% | ▾ -0.6% |
| MFL MarMac Community School District | 879 | 14.2% | ▾ -1.3% |
| Postville Community School District | 737 | 11.9% | ▾ -0.3% |
| Starmont Community School District | 531 | 8.6% | ▾ -6% |
| Download all school district data | |||
Clayton County school district enrollment and trends per most recent NCES reporting data.
Clayton County Housing & Real Estate
Clayton County has a median home value of $155,700 and a median gross rent of $764. 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 Iowa median, while rents come in below the state average. In March 2026, the median listing price was $309,925 and homes spent about 109 days on the market.
Clayton County Housing Mix
Clayton County housing mix: owner, renter and vacant units.
Clayton County Housing Trends
Clayton County median home value and rent trend (last 5 years).
Businesses in Clayton County, IA
Clayton County has 1,002 business listings across 307 categories. The largest categories in Clayton County business listings are Churches & Religious Organizations (40, 4.0%), Parks & Recreation (20, 2.0%), and Landmark And Historical Building (20, 2.0%). The full Clayton County business listings dataset includes names, categories, addresses and contact details where available. Clayton County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Clayton County, IA
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 40 | 4.0% |
| Parks & Recreation | 20 | 2.0% |
| Landmark And Historical Building | 20 | 2.0% |
| Campgrounds & RV Parks | 19 | 1.9% |
| Convenience Stores | 18 | 1.8% |
| Contractors | 15 | 1.5% |
| Bars & Nightlife | 15 | 1.5% |
| Bed And Breakfast | 15 | 1.5% |
| Beauty Salons | 13 | 1.3% |
| Auto Repair | 13 | 1.3% |
Clayton County Business Listings
| Business | Category | City |
|---|---|---|
| Cedar Street Suites | Accommodation | Elkader |
| Three Rivers FS | Agricultural Cooperatives | Elkader |
| Agmerica LLC | Agricultural Service | Garnavillo |
| Norby's Farm Fleet | Agriculture | Elkader |
| FAST STOP - Elkader, Iowa | Agriculture Association | Elkader |
| GAA Private Airport | Airport | Guttenberg |
| Franklin Hotel | American Restaurants | Strawberry Point |
| Twisted Alley | Antique Store | Elkader |
| Art's-Way Scientific | Appliance Manufacturer | Monona |
| Olson Appliance | Appliance Store | Elkader |
| Download Clayton County business listings | ||
Clayton County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Clayton County Basemaps
Clayton 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 Clayton County Data Package
This page shows a preview of what's included in the Clayton 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 Clayton County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.