Buchanan County, Missouri
Buchanan County: county in Virginia, United States
About
Buchanan County is a county located in the U.S. state of Missouri. As of the 2010 census, the population was 89,201 and a population density of 68 people per km². After 10 years in 2020 county had an estimated population of 86,530 inhabitants. Its county seat is Grundy. The county was created 168 years ago in 1857.
County Snapshot
Buchanan County at a glance
Buchanan County currently has 8 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
8
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Missouri counties
115
Open related pagesLargest city
Saint JosephPopulation 74,074
Top linked places
Quick Facts about Buchanan County
| Population | 86,530 (2020) |
| Country | United States of America |
| State | Missouri (United States) |
| Different from | Buchanan County, Buchanan County |
| Area | 1305 km2 |
| Water as percent of area | 0.2% |
| Land as percent of area | 99.8% |
| Latitude & Longitude | 39.6599,-94.8062 |
| Named for | James Buchanan |
| Altitude | 919 feet / 280 meters |
| Capital | Grundy |
| Establishment | January 01, 1858 |
| Time Zone | America/Chicago |
| Local time | 22:54:17 (17th April 2026) |
| Density | 66 Pop. per km² as of 2020 |
| Population growth | -3.09% (2010-2020) |
| Weather | 82℉ Partly Sunny then Showers And Thunderstorms 7-days weather |
Geography
Buchanan County is located at 39°39'35"N 94°48'22"W (39.6598600, -94.8061600). It has 6 neighbors: Russell County, Pike County, McDowell County, Dickenson County, Tazewell County and Mingo County.
Buchanan County map
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The largest city of Buchanan County is Saint Joseph with a population of 74,074. Other cities include, Sparta population 2,076, Taos population 1,157, Agency population 651 and Rushville population 275. See all Buchanan County cities & populated places.
Buchanan County Populated Places
Cities, towns, neighborhoods & other populated places in Buchanan County.
| City Name | Population | Title |
|---|---|---|
| Saint Joseph | 74,074 | The most populous city in Buchanan County, Missouri. |
| Sparta | 2,076 | City in Christian County, Missouri |
| Taos | 1,157 | City in Buchanan County, Missouri, United States |
| Agency | 651 | Human settlement in Buchanan County, Missouri, United States of America |
| Rushville | 275 | Village in the United States |
| Easton | 233 | City in Buchanan County, Missouri, United States |
| De Kalb | 222 | City in Missouri, United States |
| Lewis and Clark Village | 127 | Village in the United States |
Weather
Showers and thunderstorms after noon. Partly sunny. High near 82, with temperatures falling to around 72 in the afternoon. South southwest wind 21 to...
7-Day ForecastOfficial website of Buchanan County
Official Website- Grundy
Demographics
According to census records, the population of Buchanan County decreased by 3.09% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 89,201 | - | census |
| 2011 | 89,728 | 0.59% | estimation process |
| 2012 | 89,930 | 0.22% | estimation process |
| 2013 | 89,826 | -0.12% | estimation process |
| 2014 | 89,600 | -0.25% | estimation process |
| 2015 | 89,082 | -0.58% | estimation process |
| 2016 | 89,032 | -0.06% | estimation process |
| 2017 | 88,660 | -0.42% | estimation process |
| 2018 | 88,163 | -0.56% | estimation process |
| 2019 | 87,364 | -0.91% | estimation process |
| 2020 | 86,530 | -0.96% | estimation process |
People born in Buchanan County (1)
American judge Elizabeth A. McClanahan was born in Buchanan County
Other places with the same name (2)
- Buchanan County, Iowa county in Iowa, United States with a population of 21,287 people.
- Buchanan County, Virginia county in Virginia, United States with a population of 20,613 people.
Missouri Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Saint Louis County | 994,020 | County in Minnesota, United States |
| Jackson County | 705,925 | County in Oregon, United States |
| Kansas City | 495,327 | The third most populous city in Missouri and the center of the Kansas City metropolitan area. |
| Saint Charles County | 406,204 | County in Missouri, United States |
| St. Louis | 315,685 | The second most populous city in Missouri and the center of the St. |
| Greene County | 294,997 | County in Tennessee, United States |
| Clay County | 253,463 | County in North Carolina, United States |
| Jefferson County | 226,543 | County in Missouri, United States |
| Boone County | 182,991 | County in West Virginia, United States |
| Columbia | 124,769 | The most populous city in the state of Missouri. |
| Jasper County | 121,648 | County in South Carolina, United States |
| Independence | 116,774 | A city in Jackson County, Missouri. |
| East Independence | 110,675 | A census-designated place in Jackson County, Missouri. |
| Cass County | 106,806 | County in Missouri, United States |
| Platte County | 106,532 | County in Wyoming, United States |
| Franklin County | 104,469 | County in Missouri, United States |