• county
  • FIPS 12125
  • Largest town: Lake Butler

Union County, Florida

Union County had 15,738 residents in the Census Vintage 2024 estimate, on 243.6 square miles of land. It ranks 61st of 67 in Florida by population and 67th by land area.

Population
15,738
#61 of 67 in Florida · #2,053 in US
Area
243.6 sq mi
#67 of 67 in Florida · #2,923 in US
Density
65 / sq mi
#45 of 67 in Florida · #1,244 in US
Median household income
$60,843
#40 of 67 in Florida · #1,753 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Union County within Florida. Pin: Tallahassee.

Measure from here

Tools and pages that start from Union County

Union County population, land area and income

Union County had 15,738 residents in the Census Vintage 2024 estimate, on 243.6 square miles of land. It ranks 61st of 67 in Florida by population and 67th by land area. That works out to 64.6 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Florida has 154,693 residents, so Union County has 10% of the typical county's population.

Its SAIPE 2023 median household income of $60,843 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

15,738

3144th1st

2053rd of 3,144 (US)

Land area

244 sq mi

3144th1st

2923rd of 3,144 (US)

Density

64.6 / sq mi

3144th1st

1244th of 3,144 (US)

Median household income

$60,843

3143rd1st

1753rd of 3,143 (US)

Rank within Florida (67)

Population

15,738

67th1st

61st of 67 (FL)

Land area

244 sq mi

67th1st

67th of 67 (FL)

Density

64.6 / sq mi

67th1st

45th of 67 (FL)

Median household income

$60,843

67th1st

40th of 67 (FL)

How Union County's population changed since 2020

Union County gained 305 residents between the July 2020 and July 2024 estimates, a rise of 2.0%. That ranks 59th of 67 in Florida for growth. The median Florida county changed by +7.8%, and the state as a whole by +8.2%.

Since the April 2020 estimates base, Union County recorded 596 births and 1,112 deaths, a natural change of -516. Net international migration added +12 and net domestic migration, people moving to or from other US counties, came to +226. The largest single component was natural change, which removed 516 people.

15.4k202015.9k202115.5k202216.0k202315.7k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
596
Deaths
1,112
Net international migration
+12
Net domestic migration
+226
Change, July 2023 to July 2024
-255

Where Union County is

The Census internal point of Union County is at 30.054300, -82.366900. It sits in UTM zone 17N. The map shades Florida's 67 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Union County outlined. Dots are towns of 1,000+ people with residents in it.

Escambia County: +2.7%Okaloosa County: +4.0%St. Lucie County: +17.9%Okeechobee County: +6.8%DeSoto County: +7.8%Bradford County: -0.5%Bay County: +14.4%Holmes County: +1.6%Gilchrist County: +13.1%Manatee County: +14.1%Hardee County: +2.9%Lafayette County: +5.0%Flagler County: +17.9%Nassau County: +14.7%Pasco County: +16.4%Martin County: +4.4%Palm Beach County: +5.9%Alachua County: +4.3%Lee County: +12.5%Brevard County: +8.2%Polk County: +16.8%Pinellas County: +0.6%Highlands County: +8.3%Hamilton County: +4.4%Wakulla County: +9.5%Clay County: +8.1%Suwannee County: +9.2%Madison County: +2.9%Columbia County: +6.0%Jackson County: +6.1%Calhoun County: -3.1%Franklin County: +4.0%Gulf County: +11.3%Hernando County: +11.5%Washington County: +4.7%Levy County: +10.9%Liberty County: +1.9%Putnam County: +5.3%Volusia County: +8.5%Walton County: +18.2%Osceola County: +19.7%Leon County: +2.2%Union County: +2.0%Sarasota County: +9.2%Dixie County: +5.6%Charlotte County: +12.8%Indian River County: +7.3%Broward County: +4.8%Hendry County: +16.1%Sumter County: +18.7%Miami-Dade County: +5.3%Citrus County: +10.1%Seminole County: +4.9%Lake County: +15.0%Marion County: +13.6%St. Johns County: +20.9%Gadsden County: +1.7%Jefferson County: +10.5%Baker County: +4.3%Glades County: +8.7%Collier County: +10.3%Duval County: +5.7%Taylor County: +0.4%Monroe County: -2.3%Hillsborough County: +7.8%Santa Rosa County: +9.9%Orange County: +7.1%
Change 2020 to 2024
  1. < +4.0%
  2. < +5.7%
  3. < +8.7%
  4. < +13.1%
  5. ≥ +13.1%
no data

Orange pin: Union County internal point. Dark pin: Tallahassee.

Internal point

Decimal
30.054300, -82.366900
DMS
30°03'15.48"N 82°22'0.84"W
UTM
17N 368231.2E 3325589.5N
Geohash
djm6vxnqb
Plus code
862V3J3M+P6

Towns in Union County

One incorporated place of 1,000+ people has residents in Union County, 1,983 people together, or 13% of the county. Each figure counts only the part of the town inside Union County; towns marked "part" extend into another county. The largest is Lake Butler with 1,983.

  1. 01Lake Butler1,983
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Union County

The Census 2024 county adjacency file lists 4 neighbors for Union County. The most populous is Alachua County, FL, with 291,782 residents. Distances run between Census internal points in a straight line.

Distance to Tallahassee and the nearest big city

Tallahassee is 117.3 miles WNW of Union County's internal point in a straight line. The nearest place of 100,000 or more is Gainesville, FL (population 148,720), 25.9 miles away. The nearest place of 10,000 or more is Lake City, FL (population 12,783), 18.9 miles away.

Union County FIPS code

The FIPS code of Union County is 12125: state code 12 for Florida plus county code 125. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $60,843.

Questions people ask

What is the population of Union County, Florida?

The Census Vintage 2024 estimate for July 1, 2024 is 15,738. That is up 305 people (2.0%) from the July 2020 estimate of 15,433.

What is the FIPS code of Union County?

12125. The first two digits (12) are Florida; the last three (125) identify the county.

What is the largest town in Union County?

Lake Butler, with 1,983 residents inside Union County in 2024.

Which counties border Union County?

4 county-equivalents border it in the Census 2024 adjacency file: Alachua County, FL; Columbia County, FL; Baker County, FL; Bradford County, FL.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.