Bremer County GIS Maps
Bremer County, Iowa, has 24,988 residents across 19,957 parcels and covers 435.5 square miles. The population grew 2.9% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Bremer County is 19017.
Waverly is the county's largest population center. Bremer County also includes 8 zip codes, 8 public school districts and 32 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.
Bremer County Trends
- Population
- 24,988▴
- Median Home Value
- $207,200▴
- K-12 Enrollment
- 6,600▾
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.
Bremer 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.
Bremer County Parcels
Bremer County has 19,957 mapped parcels covering 270,052 acres. The median assessed value is $99,340. The median lot size is 2.91 acres. 7,673 parcels are 10 acres or larger. The records carry 10,075 distinct owner names. Owner names, assessed values and lot sizes are on nearly every parcel. Site addresses reach 57.3%. Browse the interactive Bremer County Parcel viewer here.
Bremer County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 19,957 | 100% |
| Owner name | 19,907 | 99.7% |
| Owner mailing address | 0 | 0% |
| Site address | 11,433 | 57.3% |
| Land use code | 0 | 0% |
| Land use description | 0 | 0% |
| Assessed value | 19,800 | 99.2% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 19,896 | 99.7% |
| Parcel boundary | 19,957 | 100% |
| Download all Bremer County parcels. | ||
Field coverage measured across all Bremer County parcel records.
Bremer County Population
Bremer County had 24,988 residents in 2020. That was 2.9% higher than in 2010. Bremer County added 1,663 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 57 people per square mile. Some of the county's most populated postal areas include Waverly, Sumner and Denver.
Population Trend in Bremer County IA
Bremer County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Bremer County Zip Codes
Bremer County has 8 zip codes. Some of the county's most populated zip codes include Waverly (50677), Sumner (50674) and Denver (50622). Waverly is the largest zip by population, with about 12,789 residents or 51% of the county total. Together, the three largest zips account for about 79% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Bremer County IA
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 50677 | Waverly | 12,789 | ▴ 5.4% |
| 50674 | Sumner | 3,480 | ▾ -2.1% |
| 50622 | Denver | 3,452 | ▴ 7.7% |
| 50647 | Janesville | 1,989 | ▴ 5% |
| 50676 | Tripoli | 1,815 | ▾ -13.8% |
| Download all zip code data | |||
Bremer County Zip Code populations and trends per most recent census data.
Bremer County Demographics
Bremer County has a median age of 38.6, which is close to the Iowa average. About 22.6% of residents are under 18, while 19.5% 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 28.9% of the population, which points to a solid working-age base. About 35.2% 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 Bremer County IA
Median Age
38.6
Under 18
22.6%
Age 65+
19.5%
Bachelor's+
35.2%
Bremer County School Districts
Bremer County is served by 8 public school districts with 6,600 students enrolled in 2024. The largest districts on the county map are Waverly-Shell Rock Community, Denver Community and Sumner-Fredericksburg Community. Those three districts account for about 61% 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 Bremer County IA
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Waverly-Shell Rock Community School District | 2,259 | 34.2% | ▾ -1% |
| Denver Community School District | 1,007 | 15.3% | ▴ 2.9% |
| Sumner-Fredericksburg Community School District | 789 | 12% | ▾ -1.9% |
| Wapsie Valley Community School District | 637 | 9.7% | ▾ -4.6% |
| Nashua-Plainfield Community School District | 592 | 9% | ▾ -0.2% |
| Download all school district data | |||
Bremer County school district enrollment and trends per most recent NCES reporting data.
Bremer County Housing & Real Estate
Bremer County has a median home value of $207,200 and a median gross rent of $844. About 81% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Iowa median, while rents come in below the state average. In March 2026, the median listing price was $326,160 and homes spent about 73 days on the market.
Bremer County Housing Mix
Bremer County housing mix: owner, renter and vacant units.
Bremer County Housing Trends
Bremer County median home value and rent trend (last 5 years).
Businesses in Bremer County, IA
Bremer County has 1,163 business listings across 341 categories. The largest categories in Bremer County business listings are Churches & Religious Organizations (46, 4.0%), Medical Offices (30, 2.6%), and Insurance Agencies (29, 2.5%). The full Bremer County business listings dataset includes names, categories, addresses and contact details where available. Bremer County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Bremer County, IA
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 46 | 4.0% |
| Medical Offices | 30 | 2.6% |
| Insurance Agencies | 29 | 2.5% |
| Convenience Stores | 23 | 2.0% |
| Parks & Recreation | 22 | 1.9% |
| Contractors | 19 | 1.6% |
| Hair Salons | 14 | 1.2% |
| Auto Repair | 13 | 1.1% |
| Bars & Nightlife | 13 | 1.1% |
| Banks & Credit Unions | 13 | 1.1% |
Bremer County Business Listings
| Business | Category | City |
|---|---|---|
| Pathway Behavioral Services | Abuse And Addiction Treatment | Waverly |
| Founders Hall | Accommodation | Waverly |
| Oltrogge Keith CPA | Accountant | Denver |
| Sweet Marsh State Wildlife Management Area | Active Life | Sumner |
| Rulapaugh Marketing LLC | Advertising Agency | Waverly |
| AgVantage FS | Agricultural Cooperatives | Waverly |
| Hoth Grain Structures Inc | Agricultural Service | Sumner |
| Aronia Berry Services | Agriculture | Fairbank |
| Waverly Municipal Airport - C25 | Airport | Waverly |
| Bremer County Bucks Rugby Pitch | Amateur Sports Team | Waverly |
| Download Bremer County business listings | ||
Bremer County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Bremer County Basemaps
Bremer 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 Bremer County Data Package
This page shows a preview of what's included in the Bremer 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 Bremer County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.