County outline
Where Greene County is located
Area breakdown
Land accounts for 99.4% of Greene County’s measured area and water for 0.6%. Its combined area converts to 1,413.9 square kilometers or approximately 349,383 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 542.469 | 1,404.988 | 347,180.2 |
| Water | 3.442 | 8.915 | 2,202.9 |
| Total | 545.911 | 1,413.903 | 349,383 |
How Greene County compares
By original Census land area, Greene County ranks #4 of 92 in Indiana and #1921 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.368 times the Indiana county-equivalent median of 396.4 square miles. It accounts for 1.5% of the combined county land area in the state.
See the complete Indiana ranking · What counts as a county equivalent?
Population and density of Greene County
The Census Bureau estimates that 31,165 people lived in Greene County on July 1, 2025. That ranks #1,452 of 3,222 county equivalents nationally and #53 of 92 in Indiana. Since the April 1, 2020 estimates base of 30,799, the population has grown by 366 (+1.2%), compared with +2.8% for Indiana as a whole.
With 542.5 square miles of land, that is 57 people per square mile (22 per km²), placing Greene County #1,423 nationally for density and #68 in Indiana. The median county equivalent has 47 people per square mile; the Indiana median is 88. Put another way, there are about 11 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 30,803 | 30,842 | 31,030 | 31,086 | 31,192 | 31,165 |
| Change | — | +39 | +188 | +56 | +106 | −27 |
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 Greene County
7 incorporated places lie at least partly in Greene County. Together they are home to 11,977 people (38.4%); the other 19,188 (61.6%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Linton city, with 5,245 residents in the county. The county seat, Bloomfield town, has 2,306 residents. Among places with at least 1,000 residents in 2020, Worthington town grew fastest since then (+0.9%).
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Linton city | 5,245 | +0.3% | 3.275 |
| Bloomfield townCounty seat | 2,306 | +0.7% | 1.409 |
| Jasonville city | 1,952 | −1.7% | 1.268 |
| Worthington town | 1,403 | +0.9% | 0.772 |
| Lyons town | 638 | +2.1% | 0.807 |
| Switz City town | 273 | +1.9% | 0.202 |
| Newberry town | 160 | 0% | 0.479 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Greene County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Greene 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
17 ZIP Code Tabulation Areas have land in Greene County; 11 of them have most of their land inside the county, and the others mainly cover neighboring areas.
4740347424474384744147443474454744947453474574745947460474624746547471475294757847848
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 Greene County
Greene County shares a land border with 8 county equivalents. It has more land than every one of them. The largest neighbor is Knox County (515.8 mi²) and the smallest is Martin County (335.8 mi²). Together with its neighbors, Greene County forms a block of 3,857.3 mi² of land, of which it holds 14.1%.
| Bordering county equivalent | Land mi² | Size vs. Greene | Compare |
|---|---|---|---|
| Knox County | 515.8 | 1.1× smaller | Compare |
| Lawrence County | 449.1 | 1.2× smaller | Compare |
| Sullivan County | 447.2 | 1.2× smaller | Compare |
| Daviess County | 429.5 | 1.3× smaller | Compare |
| Monroe County | 394.5 | 1.4× smaller | Compare |
| Owen County | 385.3 | 1.4× smaller | Compare |
| Clay County | 357.6 | 1.5× smaller | Compare |
| Martin County | 335.8 | 1.6× smaller | Compare |
How big is Greene County compared with U.S. states?
Greene County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.9 times as much. Indiana’s county land could hold about 66 areas the size of Greene County.
Another way to picture it: the same land area would fill a square about 23.3 miles (37.5 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 Greene County?
Greene County has more land than 1,301 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 Greene County at #2,020 nationally by total area, 99 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 0.6%, compared with a national county-equivalent median of 1.2% — 0.5 percentage points lower. 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 Greene County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #1920 | Greene County, Illinois | 543.1 | Compare |
| #1921 | Greene County, Indiana | 542.5 | This county |
| #1922 | Warren County, Illinois | 542.4 | 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 39.047147, -87.004771. 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: 1,404,988,511 m²; AWATER: 8,915,030 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 Greene County?
Greene County, Indiana has 542.5 square miles (1,405 km²) of land and 3.442 square miles of water, for a total area of 545.9 square miles. It ranks #1921 of 3,222 U.S. county equivalents by land area.
Is Greene County the largest county in Indiana?
No. Greene County ranks #4 of 92 in Indiana by land area. The largest is Allen County, with 657.1 square miles of land.
What counties border Greene County?
Greene County shares a land border with Owen County, Sullivan County, Monroe County, Martin County, Daviess County, Clay County, Knox County, and Lawrence County.
What is the population of Greene County?
The Census Bureau estimates Greene County had 31,165 residents on July 1, 2025, ranking #1,452 of 3,222 county equivalents. That is 57 people per square mile of land.
What is the county seat of Greene County?
The county seat of Greene County is Bloomfield.
What cities and towns are in Greene County?
Greene County has 7 incorporated places. The most populous five are Linton city, Bloomfield town, Jasonville city, Worthington town, and Lyons town; 19,188 residents live outside any incorporated place.
Is Greene County part of a metropolitan area?
No. Greene County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Greene County?
17 ZIP Code Tabulation Areas have land in Greene County, and 11 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Greene County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 1.9 times as much land.
How many acres of land are in Greene County?
The land measurement converts to approximately 347,180 acres. Including water, total area is approximately 349,383 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.