Dickinson County GIS Maps
Dickinson County, Iowa, has 17,703 residents across 26,951 parcels and covers 380.5 square miles. The population grew 6.2% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Dickinson County is 19059.
Spirit Lake is the county's largest population center. Dickinson County also includes 7 zip codes, 6 public school districts and 25 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.
Dickinson County Trends
- Population
- 17,703▴
- Median Home Value
- $251,600▴
- K-12 Enrollment
- 4,361▾
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.
Dickinson 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.
Dickinson County Parcels
Dickinson County has 26,951 mapped parcels covering 249,286 acres. The median assessed value is $136,200. The records carry 14,344 distinct owner names. Owner names, site addresses and assessed values are on nearly every parcel. Browse the interactive Dickinson County Parcel viewer here.
Dickinson County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 26,951 | 100% |
| Owner name | 26,888 | 99.8% |
| Owner mailing address | 0 | 0% |
| Site address | 26,835 | 99.6% |
| Land use code | 0 | 0% |
| Land use description | 0 | 0% |
| Assessed value | 26,779 | 99.4% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 0 | 0% |
| Parcel boundary | 26,951 | 100% |
| Download all Dickinson County parcels. | ||
Field coverage measured across all Dickinson County parcel records.
Dickinson County Population
Dickinson County had 17,703 residents in 2020. That was 6.2% higher than in 2010. Dickinson County added 1,279 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 47 people per square mile. Some of the county's most populated postal areas include Spirit Lake, Milford and Lake Park.
Population Trend in Dickinson County IA
Dickinson County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Dickinson County Zip Codes
Dickinson County has 7 zip codes. Some of the county's most populated zip codes include Spirit Lake (51360), Milford (51351) and Lake Park (51347). Spirit Lake is the largest zip by population, with about 8,553 residents or 48% of the county total. Together, the three largest zips account for about 84% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Dickinson County IA
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 51360 | Spirit Lake | 8,553 | ▴ 6.5% |
| 51351 | Milford | 4,844 | ▴ 11% |
| 51347 | Lake Park | 1,489 | ▴ 4.1% |
| 51331 | Arnolds Park | 1,102 | ▾ -3.3% |
| 51355 | Okoboji | 847 | ▾ -3.1% |
| Download all zip code data | |||
Dickinson County Zip Code populations and trends per most recent census data.
Dickinson County Demographics
Dickinson County has a median age of 48.1, which makes the county a little older than Iowa overall. About 19.2% of residents are under 18, while 27.6% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 65 and over at about 27.6% of the population, which points to an older population profile. About 32.3% 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 Dickinson County IA
Median Age
48.1
Under 18
19.2%
Age 65+
27.6%
Bachelor's+
32.3%
Dickinson County School Districts
Dickinson County is served by 6 public school districts with 4,361 students enrolled in 2024. The largest districts on the county map are Spirit Lake Community, Okoboji Community and Estherville Lincoln Central Community. Those three districts account for about 84% 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 Dickinson County IA
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Spirit Lake Community School District | 1,319 | 30.2% | ▾ -0.7% |
| Okoboji Community School District | 1,196 | 27.4% | ▾ -1.4% |
| Estherville Lincoln Central Community School District | 1,127 | 25.8% | ▾ -3.4% |
| Harris-Lake Park Community School District | 341 | 7.8% | ▴ 0.3% |
| Graettinger-Terril Community School District | 325 | 7.5% | ▾ -4.1% |
| Download all school district data | |||
Dickinson County school district enrollment and trends per most recent NCES reporting data.
Dickinson County Housing & Real Estate
Dickinson County has a median home value of $251,600 and a median gross rent of $930. About 77% 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 $516,225 and homes spent about 88 days on the market.
Dickinson County Housing Mix
Dickinson County housing mix: owner, renter and vacant units.
Dickinson County Housing Trends
Dickinson County median home value and rent trend (last 5 years).
Businesses in Dickinson County, IA
Dickinson County has 1,427 business listings across 409 categories. The largest categories in Dickinson County business listings are Real Estate Agents (34, 2.4%), Parks & Recreation (30, 2.1%), and Contractors (26, 1.8%). The full Dickinson County business listings dataset includes names, categories, addresses and contact details where available. Dickinson County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Dickinson County, IA
| Category | Businesses | Share |
|---|---|---|
| Real Estate Agents | 34 | 2.4% |
| Parks & Recreation | 30 | 2.1% |
| Contractors | 26 | 1.8% |
| Lake | 25 | 1.8% |
| Restaurants | 25 | 1.8% |
| Beach | 25 | 1.8% |
| Churches & Religious Organizations | 23 | 1.6% |
| Campgrounds & RV Parks | 21 | 1.5% |
| Hotels | 18 | 1.3% |
| Bars & Nightlife | 18 | 1.3% |
Dickinson County Business Listings
| Business | Category | City |
|---|---|---|
| The Landings | Accommodation | Spirit Lake |
| Kallsen and Associates CPAs | Accountant | Spirit Lake |
| Boat Okoboji Rental | Active Life | Arnolds Park |
| Web Graphics, Inc. | Advertising Agency | Milford |
| VonEhwegen Precision Systems | Agricultural Service | Terril |
| Prairie Feed & Trucking | Agriculture | Milford |
| Milford Municipal Airport | Airport | Milford |
| VW Dock Co | Altering And Remodeling Contractor | Spirit-Lake |
| The Outrigger | American Restaurants | Okoboji |
| Arnolds Park Amusement Park | Amusement Park | Arnolds Park |
| Download Dickinson County business listings | ||
Dickinson County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Dickinson County Basemaps
Dickinson 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 Dickinson County Data Package
This page shows a preview of what's included in the Dickinson 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 Dickinson County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.