Marion County, Iowa
Marion County: county in Iowa, United States
About
Marion County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 33,309 and a population density of 23 people per km². After 10 years in 2020 county had an estimated population of 33,168 inhabitants. Its county seat is Knoxville. The county was created 181 years ago in 1844.
County Snapshot
Marion County at a glance
Marion County currently has 9 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
9
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Iowa counties
99
Open related pagesLargest city
PellaPopulation 10,266
Top linked places
Quick Facts about Marion County
| Population | 33,168 (2020) |
| Country | United States of America |
| State | Iowa (United States) |
| Different from | Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County, Marion County |
| Area | 1478 km2 |
| Water as percent of area | 2.8% |
| Land as percent of area | 97.2% |
| Latitude & Longitude | 41.3345,-93.0994 |
| Named for | Francis Marion |
| Capital | Knoxville |
| Establishment | January 01, 1845 |
| Time Zone | UTC−05:00 |
| Local time | 22:32:26 (18th April 2026) |
| Density | 22 Pop. per km² as of 2020 |
| Population growth | -0.43% (2010-2020) |
| Weather | 52℉ Chance Rain Showers then Sunny 7-days weather |
Geography
Marion County is located at 41°20'4"N 93°5'58"W (41.3344500, -93.0994400). It has 3 neighbors: Jasper County, Lucas County and Mahaska County.
Marion County map
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The largest city of Marion County is Pella with a population of 10,266. Other cities include, Knoxville population 7,082, Pleasantville population 1,714, Melcher-Dallas population 1,236 and Bussey population 406. See all Marion County cities & populated places.
Marion County Populated Places
Cities, towns, neighborhoods & other populated places in Marion County.
| City Name | Population | Title |
|---|---|---|
| Pella | 10,266 | City in Marion County, Iowa, United States |
| Knoxville | 7,082 | City in and seat of Marion County, Iowa, United States |
| Pleasantville | 1,714 | City in Marion County, Iowa |
| Melcher-Dallas | 1,236 | City in Marion County, Iowa, United States |
| Bussey | 406 | Human settlement in United States of America |
| Harvey | 243 | Human settlement in Marion County, Iowa, United States of America |
| Hamilton | 135 | City in Marion County, Alabama, United States |
| Swan | 74 | City in Iowa, United States |
| Marysville | 68 | Human settlement in Marion County, Iowa, United States of America |
Weather
A chance of rain showers before 7am. Sunny, with a high near 52. Northwest wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is...
7-Day ForecastOfficial website of Marion County
Official Website- Knoxville
Demographics
According to census records, the population of Marion County decreased by 0.43% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 33,309 | - | census |
| 2011 | 33,270 | -0.12% | estimation process |
| 2012 | 33,274 | 0.01% | estimation process |
| 2013 | 33,014 | -0.79% | estimation process |
| 2014 | 33,269 | 0.77% | estimation process |
| 2015 | 33,109 | -0.48% | estimation process |
| 2016 | 33,146 | 0.11% | estimation process |
| 2017 | 33,091 | -0.17% | estimation process |
| 2018 | 33,259 | 0.51% | estimation process |
| 2019 | 33,253 | -0.02% | estimation process |
| 2020 | 33,168 | -0.26% | estimation process |
People born in Marion County (3)
People born in Marion County, including politician Elmer W. Cart, Indian agent and photographer Thomas Leander Moorhouse, Bass Van Gilst, .
More notable people
Other places with the same name (16)
- Marion County, Indiana county in Oregon, United States with a population of 966,183 people.
- Marion County, Florida county in Florida, United States with a population of 373,513 people.
- Marion County, Oregon county in Oregon, United States with a population of 349,204 people.
- Marion County, Ohio county in Ohio, United States with a population of 64,820 people.
- Marion County, West Virginia county in West Virginia, United States with a population of 55,962 people.
- Marion County, Illinois county in Illinois, United States with a population of 37,045 people.
- Marion County, South Carolina county in South Carolina, United States with a population of 30,158 people.
- Marion County, Alabama county in Alabama, United States with a population of 29,703 people.
- Marion County, Tennessee county in Tennessee, United States with a population of 28,924 people.
- Marion County, Missouri county in northeast Missouri, United States with a population of 28,423 people.
- Marion County, Mississippi county in Mississippi, United States with a population of 24,441 people.
- Marion County, Kentucky county in Kentucky, United States with a population of 19,314 people.
- Marion County, Arkansas county in Arkansas, United States with a population of 16,790 people.
- Marion County, Kansas county in Kansas, United States with a population of 11,652 people.
- Marion County, Texas county in Texas, United States with a population of 9,960 people.
- Marion County, Georgia county in Georgia, United States with a population of 8,516 people.
Iowa Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Indiana | 820,445 | A city located in the state of Iowa. |
| Polk County | 494,281 | County in Iowa, United States |
| Linn County | 227,854 | County in Oregon, United States |
| Des Moines | 212,312 | The capital of Iowa. |
| Scott County | 173,216 | County in Tennessee, United States |
| Johnson County | 153,740 | County in Iowa, United States |
| Cedar Rapids | 134,027 | The second most populous city in Iowa. |
| Black Hawk County | 130,786 | County in Iowa, United States |
| Woodbury County | 103,138 | County in Iowa, United States of America |
| Davenport | 101,799 | The most populous city in Scott County, Iowa. |
| Story County | 98,237 | County in Iowa, United States |
| Dubuque County | 97,590 | County in Iowa, United States |
| Dallas County | 96,963 | County in Iowa, United States |
| Pottawattamie County | 93,328 | County in Iowa, United States of America |
| Sioux City | 82,651 | The second most populous city in Iowa. |
| Iowa City | 75,130 | The most populous city in Johnson County, Iowa. |