County outline
Where Randolph County is located
Area breakdown
Land accounts for 99.8% of Randolph County’s measured area and water for 0.2%. Its combined area converts to 1,174.1 square kilometers or approximately 290,120 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 452.379 | 1,171.656 | 289,522.6 |
| Water | 0.934 | 2.419 | 597.8 |
| Total | 453.313 | 1,174.075 | 290,120.3 |
How Randolph County compares
By original Census land area, Randolph County ranks #18 of 92 in Indiana and #2262 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.141 times the Indiana county-equivalent median of 396.4 square miles. It accounts for 1.3% of the combined county land area in the state.
See the complete Indiana ranking · What counts as a county equivalent?
Population and density of Randolph County
The Census Bureau estimates that 24,438 people lived in Randolph County on July 1, 2025. That ranks #1,687 of 3,222 county equivalents nationally and #64 of 92 in Indiana. Since the April 1, 2020 estimates base of 24,503, the population has declined by 65 (−0.3%), compared with +2.8% for Indiana as a whole.
With 452.4 square miles of land, that is 54 people per square mile (21 per km²), placing Randolph County #1,476 nationally for density and #73 in Indiana. The median county equivalent has 47 people per square mile; the Indiana median is 88. Put another way, there are about 12 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 24,414 | 24,418 | 24,396 | 24,356 | 24,385 | 24,438 |
| Change | — | +4 | −22 | −40 | +29 | +53 |
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 Randolph County
10 incorporated places lie at least partly in Randolph County. Together they are home to 13,247 people (54.2%); the other 11,191 (45.8%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Winchester city, with 4,817 residents in the county.
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Winchester cityCounty seat | 4,817 | −0.5% | 3.459 |
| Union City city | 3,450 | −0.2% | 2.258 |
| Parker City town | 1,279 | −0.8% | 0.575 |
| Farmland town | 1,265 | −0.2% | 0.531 |
| Lynn town | 950 | −0.4% | 0.565 |
| Ridgeville town | 694 | +0.6% | 0.555 |
| Saratoga town | 229 | −0.9% | 0.265 |
| Losantville town | 220 | −0.5% | 0.189 |
| Albany townAlso in 1 other county | 184 | −0.5% | 1.981 |
| Modoc town | 159 | −0.6% | 0.103 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Randolph County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Randolph 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
14 ZIP Code Tabulation Areas have land in Randolph County; 9 of them have most of their land inside the county, and the others mainly cover neighboring areas.
4732047340473544735547358473604736847371473734738047382473904739347394
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 Randolph County
Randolph County shares a land border with 5 county equivalents, including 1 in Ohio. It has more land than 4 of them. The largest neighbor is Darke County (598.1 mi²) and the smallest is Jay County (383.9 mi²). Together with its neighbors, Randolph County forms a block of 2,620.1 mi² of land, of which it holds 17.3%.
| Bordering county equivalent | Land mi² | Size vs. Randolph | Compare |
|---|---|---|---|
| Darke CountyOhio | 598.1 | 1.3× larger | Compare |
| Wayne County | 401.8 | 1.1× smaller | Compare |
| Delaware County | 392.1 | 1.2× smaller | Compare |
| Henry County | 391.9 | 1.2× smaller | Compare |
| Jay County | 383.9 | 1.2× smaller | Compare |
How big is Randolph County compared with U.S. states?
Randolph County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.3 times as much. Indiana’s county land could hold about 79 areas the size of Randolph County.
Another way to picture it: the same land area would fill a square about 21.3 miles (34.2 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 Randolph County?
Randolph County has more land than 960 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 Randolph County at #2,332 nationally by total area, 70 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 0.2%, compared with a national county-equivalent median of 1.2% — 1 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 Randolph County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #2261 | Clermont County, Ohio | 452.6 | Compare |
| #2262 | Randolph County, Indiana | 452.4 | This county |
| #2263 | Ritchie County, West Virginia | 452 | 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 40.164089, -85.005782. 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: 1,171,656,755 m²; AWATER: 2,420,286 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 Randolph County?
Randolph County, Indiana has 452.4 square miles (1,171.7 km²) of land and 0.934 square miles of water, for a total area of 453.3 square miles. It ranks #2262 of 3,222 U.S. county equivalents by land area.
Is Randolph County the largest county in Indiana?
No. Randolph County ranks #18 of 92 in Indiana by land area. The largest is Allen County, with 657.1 square miles of land.
What counties border Randolph County?
Randolph County shares a land border with Jay County, Darke County, Ohio, Wayne County, Delaware County, and Henry County.
What is the population of Randolph County?
The Census Bureau estimates Randolph County had 24,438 residents on July 1, 2025, ranking #1,687 of 3,222 county equivalents. That is 54 people per square mile of land.
What is the county seat of Randolph County?
The county seat of Randolph County is Winchester.
What cities and towns are in Randolph County?
Randolph County has 10 incorporated places. The most populous five are Winchester city, Union City city, Parker City town, Farmland town, and Lynn town; 11,191 residents live outside any incorporated place.
Is Randolph County part of a metropolitan area?
No. Randolph County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Randolph County?
14 ZIP Code Tabulation Areas have land in Randolph County, and 9 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Randolph County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 2.3 times as much land.
How many acres of land are in Randolph County?
The land measurement converts to approximately 289,523 acres. Including water, total area is approximately 290,120 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.