Carroll County GIS Maps
Carroll County, Iowa, has 20,760 residents across 21,581 parcels and covers 569.4 square miles. The population declined 0.3% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Carroll County is 19027.
Carroll is the county's largest population center. Carroll County also includes 11 zip codes, 7 public school districts and 34 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.
Carroll County Trends
- Population
- 20,760▾
- Median Home Value
- $175,700▴
- K-12 Enrollment
- 5,071▾
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.
Carroll 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.
Carroll County Parcels
Carroll County has 21,581 mapped parcels covering 342,366 acres. Agricultural land accounts for 46.3% of parcels. Residential follows at 37.6% and commercial at 6.0%. The records carry 9,856 distinct owner names. Owner names are on nearly every parcel. Site addresses reach 55.9%. Browse the interactive Carroll County Parcel viewer here.
Carroll County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 21,581 | 100% |
| Owner name | 21,275 | 98.6% |
| Owner mailing address | 0 | 0% |
| Site address | 12,053 | 55.9% |
| Land use code | 0 | 0% |
| Land use description | 21,298 | 98.7% |
| Assessed value | 0 | 0% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 0 | 0% |
| Parcel boundary | 21,581 | 100% |
| Download all Carroll County parcels. | ||
Field coverage measured across all Carroll County parcel records.
Carroll County Population
Carroll County had 20,760 residents in 2020. That was 0.3% lower than in 2010. Carroll County had 661 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 Carroll, Manning and Glidden.
Population Trend in Carroll County IA
Carroll County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Carroll County Zip Codes
Carroll County has 11 zip codes. Some of the county's most populated zip codes include Carroll (51401), Manning (51455) and Glidden (51443). Carroll is the largest zip by population, with about 12,248 residents or 59% of the county total. Together, the three largest zips account for about 78% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Carroll County IA
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 51401 | Carroll | 12,248 | ▾ -1% |
| 51455 | Manning | 2,185 | ▾ -5.2% |
| 51443 | Glidden | 1,751 | ▾ -2.6% |
| 51436 | Breda | 929 | ▴ 2.8% |
| 51430 | Arcadia | 788 | ▴ 3.5% |
| Download all zip code data | |||
Carroll County Zip Code populations and trends per most recent census data.
Carroll County Demographics
Carroll County has a median age of 41.8, which makes the county a little older than Iowa overall. About 24.1% of residents are under 18, while 21% 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 26.9% of the population, which points to a solid working-age base. About 23.4% 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 Carroll County IA
Median Age
41.8
Under 18
24.1%
Age 65+
21%
Bachelor's+
23.4%
Carroll County School Districts
Carroll County is served by 7 public school districts with 5,071 students enrolled in 2024. The largest districts on the county map are Carroll Community, South Central Calhoun Community and East Sac County Community. Those three districts account for about 65% 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 Carroll County IA
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Carroll Community School District | 1,593 | 31.4% | ▾ -4.7% |
| South Central Calhoun Community School District | 912 | 18% | ▾ -0.3% |
| East Sac County Community School District | 777 | 15.3% | ▾ -6.5% |
| IKM-Manning Community School District | 703 | 13.9% | ▾ -1.4% |
| Coon Rapids-Bayard Community School District | 447 | 8.8% | ▴ 3.2% |
| Download all school district data | |||
Carroll County school district enrollment and trends per most recent NCES reporting data.
Carroll County Housing & Real Estate
Carroll County has a median home value of $175,700 and a median gross rent of $722. 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 Iowa median, while rents come in below the state average. In March 2026, the median listing price was $229,925 and homes spent about 98 days on the market.
Carroll County Housing Mix
Carroll County housing mix: owner, renter and vacant units.
Carroll County Housing Trends
Carroll County median home value and rent trend (last 5 years).
Businesses in Carroll County, IA
Carroll County has 1,166 business listings across 354 categories. The largest categories in Carroll County business listings are Churches & Religious Organizations (35, 3.0%), Gas Stations (21, 1.8%), and Insurance Agencies (20, 1.7%). The full Carroll County business listings dataset includes names, categories, addresses and contact details where available. Carroll County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Carroll County, IA
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 35 | 3.0% |
| Gas Stations | 21 | 1.8% |
| Insurance Agencies | 20 | 1.7% |
| Contractors | 20 | 1.7% |
| Parks & Recreation | 19 | 1.6% |
| Convenience Stores | 17 | 1.5% |
| Auto Repair | 16 | 1.4% |
| Flowers & Gifts | 15 | 1.3% |
| Shipping Center | 15 | 1.3% |
| Beauty Salons | 14 | 1.2% |
Carroll County Business Listings
| Business | Category | City |
|---|---|---|
| The Recovery Center at Manning Regional Healthcare Center | Abuse And Addiction Treatment | Manning |
| Court Street Plaza | Accommodation | Carroll |
| Robinson Ruhnke PC | Accountant | Carroll |
| Pudenz Family Chiropractic and Physiotherapy | Acupuncture | Carroll |
| Manning Family Recovery Center | Addiction Rehabilitation Center | Manning |
| J Design | Advertising Agency | Carroll |
| Triple A Seeds | Agricultural Service | Carroll |
| Koster Grain Inc. | Agriculture | Carroll |
| Arthur N. Neu Airport | Airport | Carroll |
| Carroll Merchants | Amateur Sports Team | Carroll |
| Download Carroll County business listings | ||
Carroll County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Carroll County Basemaps
Carroll 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 Carroll County Data Package
This page shows a preview of what's included in the Carroll 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 Carroll County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.