What city is ZIP code 63084?

ZIP code 63084 is in Union, MO (Franklin County).

What county is ZIP code 63084 in?

ZIP code 63084 is mostly in Franklin County, Missouri.

How many people live in ZIP code 63084?

About 20,708 people live in the 63084 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 63084

Union, MO, Franklin County

Population

20,708

Land area

76.3sq mi

People per sq mi

272

City

Union

ZIP 63084 and nearby ZIP codes

Full map

ZIP 63084 at a glance

ZIP 63084 (Union) is about 3 times as dense as Missouri as a whole.
Households here earn a median of $75,992 a year, 7% more than the Missouri figure of $70,702.
A typical owner-occupied home is valued at $226,900 and median rent is $855 a month.

Local data for ZIP 63084

Counts from official public data

Housing and community stats

ZIP 63084, American Community Survey 2020-2024

Full profile

Median household income

$75,992

Poverty rate

7.4%

Median home value

$226,900

Prices +8.9% in a year

Median rent

$855/mo

Homeownership

71.3%

Bachelor's or higher

21.6%

Median age

36.7

Average commute

25.1 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

497

ZIP Business Patterns 2023

Employees

7,422

$355M annual payroll

PPP loans

$34M

532 loans

Campaign donations

$63.6K

14% D, 18% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 63084, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: strong wind

Storm events since 1996

721

Countywide, mostly hail

Flood insurance policies

156

0.3% of homes, county

July high / Jan low

91° / 23°F

45.0 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 63084, CDC PLACES estimates

All 40 measures

Obesity

39.2%

U.S. 33.3% +5.9 pts

Diabetes

11.2%

U.S. 12.1% -0.9 pts

Smoking

16.4%

U.S. 12.8% +3.6 pts

Uninsured (18-64)

8.2%

U.S. 11.1% -2.9 pts

Frequently asked questions

What city is ZIP code 63084?: ZIP code 63084 is in Union, MO (Franklin County).
What county is ZIP code 63084 in?: ZIP code 63084 is mostly in Franklin County, Missouri.
How many people live in ZIP code 63084?: About 20,708 people live in the 63084 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.