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County · code 12125

Union CountyFlorida

Union County is a county in Florida, with its seat in Lake Butler. It was formed on October 1, 1921, from Bradford County.

  • Founded1921
  • County seatLake Butler
  • Land area244 sq mi + 6.2 sq mi water
  • Population16,147 2020 Census
  • Parcels mapped7,497 checked 15 October 2026
Open the free map Click any parcel in Union County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

BradfordBakerColumbiaAlachua Lake Butler Census outline · seat marked

Where it is

Union on the map of Florida

Florida has 67 counties and county equivalents, each with its own records office. Shapes with a page are links.

Alachua CountyBaker CountyBay CountyBradford CountyBrevard CountyBroward CountyCalhoun CountyCharlotte CountyCitrus CountyClay CountyCollier CountyColumbia CountyDeSoto CountyDixie CountyDuval CountyEscambia CountyFlagler CountyFranklin CountyGadsden CountyGilchrist CountyGlades CountyGulf CountyHamilton CountyHardee CountyHendry CountyHernando CountyHighlands CountyHillsborough CountyHolmes CountyIndian River CountyJackson CountyJefferson CountyLafayette CountyLake CountyLee CountyLeon CountyLevy CountyLiberty CountyMadison CountyManatee CountyMarion CountyMartin CountyMiami-Dade CountyMonroe CountyNassau CountyOkaloosa CountyOkeechobee CountyOrange CountyOsceola CountyPalm Beach CountyPasco CountyPinellas CountyPolk CountyPutnam CountySt. Johns CountySt. Lucie CountySanta Rosa CountySarasota CountySeminole CountySumter CountySuwannee CountyTaylor CountyVolusia CountyWakulla CountyWalton CountyWashington CountyUnion County Union
Counties of Florida · Union highlighted

History

Formed in 1921 from Bradford County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Union County was created from Bradford County in 1921.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1921
    Union County created Union created from Bradford.
    from Bradford
    · Fla. Laws 1921, 18th sess., gen., ch. 8516, secs. 1, 27/pp. 301, 307

Land and parcels

What the maps cover in Union

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Union by the Census

Population
16,147 2020 Census count
Housing units
4,713 2020 Census count
Land area
244 square miles
Water area
6.2 square miles
People per sq mi
66 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Union County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Union County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

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Questions

Common questions about Union County

When was Union County founded?
Union County was founded in 1921, formed from Bradford County.
What is the county seat of Union County?
The county seat of Union County is Lake Butler.
Is there an online parcel map for Union County?
Yes. Union County publishes a parcel map of 7,497 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Union County's boundary or name changed?
Union County was created in 1921 from Bradford County. The Atlas of Historical County Boundaries records no boundary change since.
Is my lot in a flood zone?
We do not have flood maps for Union County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door