Union County is a county in Indiana, United States, on the Ohio state line east of Indianapolis. It had a population of 7,087 at the 2020 census and covers 165.18 square miles (427.8 km2), centred near 39°37′N 84°55′W.
Liberty is the county seat, and its postal code is 47353. The county has two incorporated towns, about a dozen unincorporated communities, and six civil townships. Union County sits in the Eastern time zone and has been part of the Cincinnati-Middletown, OH-KY-IN metropolitan statistical area since 2018.
Towns & Villages in Union County
Union County has just two incorporated towns — Liberty and West College Corner — alongside a wider list of unincorporated communities and crossroads settlements. CDP = census-designated place; Unincorp. = unincorporated community with no municipal government.
| Place | Type | Township | Pop. | ZIP |
|---|---|---|---|---|
| Liberty | Town · seat | Liberty | — | 47353 |
| West College Corner | Town | Harrison | — | 47003 |
| Brownsville | Unincorp. | Brownsville | — | 47325 |
| Billingsville | Unincorp. | — | — | — |
| Charlottesville | Unincorp. | — | — | — |
| Clifton | Unincorp. | — | — | — |
| Cottage Grove | Unincorp. | — | — | — |
| Dunlapsville | Unincorp. | — | — | — |
| Five Points | Unincorp. | — | — | — |
| Goodwins Corner | Unincorp. | — | — | — |
| Hopeville | Unincorp. | — | — | — |
| Kitchel | Unincorp. | — | — | — |
| Lotus | Unincorp. | — | — | — |
| Philomath | Unincorp. | — | — | — |
| Quakertown | Unincorp. | — | — | — |
| Roseburg | Unincorp. | — | — | — |
| Salem | Unincorp. | — | — | — |
| Witts Station | Unincorp. | — | — | — |
| Yankee Town | Unincorp. | — | — | — |
West College Corner straddles the Indiana–Ohio line; the Ohio half of the same crossroads is a separate community across the border and is not part of Union County.
Townships
Union County is divided into six civil townships. Verified 2020 township-level population figures were not available for this rewrite, so populations are omitted rather than estimated.
| Township | Pop. (2020) | Main settlements |
|---|---|---|
| Liberty | — | Liberty |
| Harrison | — | West College Corner |
| Brownsville | — | Brownsville |
| Center | — | — |
| Harmony | — | — |
| Union | — | — |
ZIP Codes
- 47353 — Liberty (also serves surrounding Liberty and Center townships)
- 47003 — West College Corner (also serves the Ohio side of the same crossroads)
- 47325 — Brownsville
Smaller communities such as Dunlapsville, Kitchel, Lotus and Quakertown use one of these three post offices rather than having a ZIP code of their own.
Geography
Union County lies in the rolling farmland of east-central Indiana, on the Ohio border. The county has a total area of 165.18 square miles (427.8 km2), of which the great majority is land and the remainder small streams and reservoirs; the Whitewater River’s east fork drains much of the county. Union County borders Wayne County to the north, Fayette County to the west, Franklin County to the south, and Butler and Preble counties in Ohio to the east; Butler County is linked at townsvillages.com/us/butler-county-ohio/.
Demographics
Union County had 7,087 residents at the 2020 census. Liberty and West College Corner are the county’s two largest named communities. Median household income in Union County runs close to the Indiana median of $69,477, typical for a small rural Indiana county without a large employer base. Population density works out to roughly 44 people per square mile, among the lower densities in the Indianapolis-Cincinnati corridor.
Economy & Local Life
Union County’s economy is anchored in agriculture — corn, soybeans and livestock on the county’s rolling farmland — along with small manufacturing and services centred on Liberty. Union County is part of the Cincinnati-Middletown, OH-KY-IN metropolitan statistical area, and many residents commute east into Ohio for work. Union County Schools serves the county’s students from a consolidated district based in Liberty.
History
Union County was established on January 5, 1821, and organized as a county government on February 1, 1821. It was formed from parts of Fayette, Franklin and Wayne counties and named for the way it “united” territory drawn from those three counties. At 165.18 square miles, it remains one of Indiana’s smallest counties by area.
Getting There
U.S. Route 27 runs north–south through the county past Liberty, and Indiana State Roads 44, 101 and 227 connect the county’s smaller communities.
- Richmond, Indiana — about 15 miles north
- Connersville, Indiana — about 12 miles west
- Cincinnati, Ohio — about 45 miles southeast
- Indianapolis, Indiana — about 70 miles west
The nearest commercial airport is Cincinnati/Northern Kentucky International Airport, roughly an hour’s drive southeast.
Frequently Asked Questions
Where is Union County, Indiana?
It is in east-central Indiana on the Ohio state line, east of Indianapolis and northwest of Cincinnati.
What is the population of Union County?
Union County had a population of 7,087 at the 2020 census.
How big is Union County?
Union County covers 165.18 square miles (427.8 km2), making it one of Indiana’s smallest counties.
What is the Union County seat?
Liberty is the county seat.
How many towns are in Union County?
Union County has two incorporated towns, Liberty and West College Corner, plus about a dozen unincorporated communities.
What ZIP codes are in Union County?
Union County’s ZIP codes are 47353 (Liberty), 47003 (West College Corner) and 47325 (Brownsville).
Why is it called Union County?
It was named for uniting parts of Fayette, Franklin and Wayne counties when it was formed in 1821.
More counties in this state: Towns and villages in Indiana.