Union, MO: Local News, Events & Neighbors

Union is a city in and the county seat of Franklin County, Missouri, United States. It is located on the Bourbeuse River, 50 miles (80 km) southwest of St. Louis. The population was 12,348 at the 2020 census.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How Union ranks

All →

#4Rent easiest to afford in MO #21Fastest growing in MO #20Most new homes in MO All MO rankings →

Town numbers

ZIP code63084

Area code636

Living in Union

Housing in Union

$260K▲ 4.8% in a year Typical home value · Zillow

The typical Union home is worth about $260,000, up 4.8% in a year, close to the Missouri typical home.

A seller's market

Buyer’sBalancedSeller’s

Days on market29

Sale-to-list99.7%

Sold in May19

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Union

C⁻

Safety Grade C-

Union reports more crime per resident than most U.S. towns we grade: about 85% report less.

Violent crime per 1,000

Union 4.1

Missouri 4.3

U.S. 3.3

Property crime per 1,000

Union 22.5

Missouri 16.9

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Health in Union

Compared with Missouri

3better than MO

of 32 measures CDC estimates. The other 29 are too close to call.

Conditions 3▲ 9 close Habits all close Care all close Mind all close Everyday needs all close

BetterToo close to callWorse

What stands out

10.3%Fewer adults with diabetesMO 12.1% · better 3.1%Fewer adults who have had a strokeMO 3.6% · better

Care nearby

Mercy Hospital WashingtonWashington · 7.9 mi · ER

Compass HealthUnion · 1.6 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Union · CMS · HRSAHealth in Union →

Schools in Union

All Union schools →

B⁻

School Grade B-

The public schools Union’s kids attend, from kindergarten through graduation, outperform 50% of Missouri’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

See how Union’s schools compare in MO →

DistrictUNION R-XISchools6

Central Elem. C+Elementary · Grades PK–5 · 643 students Prairie Dell Elementary B+Elementary · Grades PK–5 · 495 students Immaculate Conception SchoolElementary · Grades PK–8 · 217 students Union Middle BMiddle · Grades 6–8 · 704 students Union High B-High · Grades 9–12 · 956 students Autumn Hill School DOther · Grades K–12 · 32 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within MO. Ratings are from neighbors.