Zip Code 63084
Union, Missouri — Franklin County
📍 ZIP code 63084 is in Union, Franklin County, Missouri.
ZIP code 63084 is located in Union, Franklin County, Missouri. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 20,511. The area code for ZIP code 63084 is 314.
Quick Answer
Zip code 63084 is in Union, Missouri (Franklin County). It has a population of 20,511, median household income of $72,332, and median home value of $221,800.
Population
20,511
Income
$72,332
Home Value
$221,800
Climate
91°F / 23°F
About Zip Code 63084
Zip code 63084 is located in Union, Missouri, within Franklin County. Home to approximately 20,511 residents, this area sits at an elevation of 641 ft and falls within the Central (CST/CDT) timezone. The local area code is 314.
The median household income is $72,332 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $221,800, and the cost of living index is 82 (18% below the national average of 100).
Summers average a high of 91°F while winters drop to 23°F. The area receives about 45 in of rain and 14 in of snow annually. The zip code covers 75.1 square miles of land area and 0.1 square miles of water.
Key Statistics
20,511
$72,332
$221,800
Central (CST/CDT)
314
641 ft
75.1 sq mi
37.5
8,511
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Compare With Nearby Zip Codes
| Metric | 63084 | 63077 | 63013 | 63089 | 63090 | 63056 |
|---|---|---|---|---|---|---|
| City | Union, MO | Saint Clair, MO | Beaufort, MO | Villa Ridge, MO | Washington, MO | Leslie, MO |
| Population | 20,511 | 11,466 | 1,204 | 5,930 | 22,471 | 1,723 |
| Median Income | $72,332 | $56,458 | $105,526 | $70,981 | $83,966 | $74,194 |
| Home Value | $221,800 | $161,800 | $304,800 | $211,400 | $260,700 | $196,900 |
| Cost of Living | 82 | 62 | 117 | 74 | 92 | 75 |
| Median Age | 37.5 | 39.5 | 43.8 | 36 | 43.2 | 45 |
Cost of Living
100 = National Average. Union's cost of living is 18% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
3.1x
Demographics
Zip code 63084 has a population of 20,511 people with a median age of 37.5. There are 8,511 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Union (63084) population trend from 2010 to 2024
↓ -37.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
91°F
23°F
45 in
14 in
Union experiences hot summers with average highs around 91°F. Winters are cool with lows averaging 23°F. The area receives about 14 in of snow per year.
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Housing & Economy
Median Home Value
$221,800
Median Household Income
$72,332
With 8,511 housing units across 75.1 square miles, 63084 has a housing density of 113 units per square mile. The home price-to-income ratio is 3.1x.
Location & Geography
Latitude
38.4219°
Longitude
-91.0193°
Land Area
75.1 sq mi
Water Area
0.1 sq mi
Nearby Zip Codes
Zip codes closest to 63084 (Union, MO) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 63084's $72,332. A way to compare Union to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 63084 (Union, MO). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Union, Missouri?
Union, Missouri uses zip code 63084.
What county is zip code 63084 in?
Zip code 63084 is located in Franklin County, Missouri.
What is the population of zip code 63084?
The population of zip code 63084 is 20,511 with a median age of 37.5.
Is 63084 in Union, Missouri?
Yes, zip code 63084 is in Union, Franklin County, Missouri. The area code is 314.
Frequently Asked Questions
What city is zip code 63084 in?
Zip code 63084 is in Union, Missouri. It is part of Franklin County and uses the Central (CST/CDT) timezone.
What is zip code 63084?
Zip code 63084 is a U.S. postal code in Union, Missouri (Franklin County). It has a population of 20,511 and covers 75.1 square miles.
What is the population of zip code 63084?
The population of zip code 63084 (Union, MO) is 20,511 with a median age of 37.5. There are approximately 8,511 housing units in this area.
What is the median income in zip code 63084?
The median household income in zip code 63084 (Union, MO) is $72,332 per year. The cost of living index is 82 (100 = national average).
What is the average home price in zip code 63084?
The median home value in zip code 63084 (Union, MO) is $221,800. The cost of living index is 82 compared to the national average of 100.
What county is zip code 63084 in?
Zip code 63084 is located in Franklin County, Missouri. The primary city is Union.
What is the area code for zip code 63084?
Zip code 63084 in Union, MO uses area code 314. It is located in the Central (CST/CDT) timezone.
Is zip code 63084 a good place to live?
Zip code 63084 (Union, MO) has a cost of living index of 82 (100 = national average), a median household income of $72,332, and median home values of $221,800. The median age is 37.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 63084?
The cost of living index for zip code 63084 (Union, MO) is 82, where 100 represents the national average. This area is below the national average. Median home value: $221,800.
What schools serve zip code 63084?
Zip code 63084 in Union, Missouri is served by the local school district of Franklin County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.