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Denison

A city of 8,260 people in Iowa
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Around town

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Outdoors in Denison

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Map of Denison: conserved land, trails and the top places to walk
Conserved land5.1%214 of 4,183 acres
Trails2.8 mi0.4 mi per sq mi
Parks & preserves1026 conserved acres per 1,000 residents

Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

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Know Denison

The town at a glance, and the guide to how things work

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About Denison

City in Iowa, United States
8,373Population
6.6 sq miArea
1,283 ftElevation

Denison is a city in Crawford County, Iowa, United States, along the Boyer River, and located in both Denison Township and East Boyer Township. The population was 8,373 at the time of the 2020 census. It is the county seat of Crawford County.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code51442
Area code712
Living in Denison

Housing in Denison

$183K▲ 2% in a year Typical home value · Zillow

The typical Denison home is worth about $183,000, up 2% in a year, 24% below the Iowa typical home.

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Denison

B+

Safety Grade B+

Denison reports less crime per resident than 68% of the U.S. towns and cities we grade.

Violent crime per 1,000
Denison 1.3
Iowa 2.4
U.S. 3.3
Property crime per 1,000
Denison 3.7
Iowa 12
U.S. 15.5
FBI crime data, 2025 · crimes reported to policeCrime & safety →

Schools in Denison

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C

School Grade C

The public schools Denison’s kids attend, from kindergarten through graduation, trail 70% of Iowa’s districts on state tests and graduation. Among towns with similar incomes, they rank near the bottom.

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DistrictDenison Comm School DistrictSchools6

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within IA. Ratings are from neighbors.

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Denison

Iowa · IA
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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01