County outline
Where Bent County is located
Area breakdown
Land accounts for 98.2% of Bent County’s measured area and water for 1.8%. Its combined area converts to 3,991.4 square kilometers or approximately 986,296 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 1,512.847 | 3,918.256 | 968,222.1 |
| Water | 28.24 | 73.141 | 18,073.6 |
| Total | 1,541.087 | 3,991.397 | 986,295.7 |
How Bent County compares
By original Census land area, Bent County ranks #32 of 64 in Colorado and #393 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.057 times the Colorado county-equivalent median of 1,431.5 square miles. It accounts for 1.5% of the combined county land area in the state.
See the complete Colorado ranking · What counts as a county equivalent?
Population and density of Bent County
The Census Bureau estimates that 5,716 people lived in Bent County on July 1, 2025. That ranks #2,832 of 3,222 county equivalents nationally and #48 of 64 in Colorado. Since the April 1, 2020 estimates base of 5,643, the population has grown by 73 (+1.3%), compared with +4.1% for Colorado as a whole.
With 1,512.8 square miles of land, that is 3.8 people per square mile (1.5 per km²), placing Bent County #2,922 nationally for density and #48 in Colorado. The median county equivalent has 47 people per square mile; the Colorado median is 11. Put another way, there are about 169 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 5,472 | 5,336 | 5,428 | 5,711 | 5,745 | 5,716 |
| Change | — | −136 | +92 | +283 | +34 | −29 |
U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.
Cities and towns in Bent County
1 incorporated place lies at least partly in Bent County. Together they are home to 2,325 people (40.7%); the other 3,391 (59.3%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Las Animas city, with 2,325 residents in the county.
Metropolitan area
Bent County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.
ZIP codes
6 ZIP Code Tabulation Areas have land in Bent County; 4 of them have most of their land inside the county, and the others mainly cover neighboring areas.
810448105081052810548105781092
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Bent County
Bent County shares a land border with 5 county equivalents. It has more land than 1 of them. The largest neighbor is Las Animas County (4,772.9 mi²) and the smallest is Otero County (1,261.9 mi²). Together with its neighbors, Bent County forms a block of 13,508.9 mi² of land, of which it holds 11.2%.
| Bordering county equivalent | Land mi² | Size vs. Bent | Compare |
|---|---|---|---|
| Las Animas County | 4,772.9 | 3.2× larger | Compare |
| Baca County | 2,555 | 1.7× larger | Compare |
| Kiowa County | 1,767.8 | 1.2× larger | Compare |
| Prowers County | 1,638.4 | 1.1× larger | Compare |
| Otero County | 1,261.9 | 1.2× smaller | Compare |
How big is Bent County compared with U.S. states?
Bent County has more land than 1 of the 50 states. It is about 1.5 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.3 times as much land (1,948.6 mi²). Colorado’s county land could hold about 69 areas the size of Bent County.
Another way to picture it: the same land area would fill a square about 38.9 miles (62.6 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.
State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.
What stands out about Bent County?
Bent County has more land than 2,829 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Bent County at #435 nationally by total area, 42 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.
Its water share is 1.8%, compared with a national county-equivalent median of 1.2% — 0.7 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Bent County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #392 | Tom Green County, Texas | 1,522.3 | Compare |
| #393 | Bent County, Colorado | 1,512.8 | This county |
| #394 | Worcester County, Massachusetts | 1,510.7 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 37.931891, -103.077584. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 3,918,255,139 m²; AWATER: 73,141,514 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Bent County?
Bent County, Colorado has 1,512.8 square miles (3,918.3 km²) of land and 28.2 square miles of water, for a total area of 1,541.1 square miles. It ranks #393 of 3,222 U.S. county equivalents by land area.
Is Bent County the largest county in Colorado?
No. Bent County ranks #32 of 64 in Colorado by land area. The largest is Las Animas County, with 4,772.9 square miles of land.
What counties border Bent County?
Bent County shares a land border with Otero County, Prowers County, Kiowa County, Las Animas County, and Baca County.
What is the population of Bent County?
The Census Bureau estimates Bent County had 5,716 residents on July 1, 2025, ranking #2,832 of 3,222 county equivalents. That is 3.8 people per square mile of land.
What is the county seat of Bent County?
The county seat of Bent County is Las Animas.
Is Bent County part of a metropolitan area?
No. Bent County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Bent County?
6 ZIP Code Tabulation Areas have land in Bent County, and 4 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Bent County compare with U.S. states?
It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).
How many acres of land are in Bent County?
The land measurement converts to approximately 968,222 acres. Including water, total area is approximately 986,296 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.