Union, SC land: flood and parcels
4,598 parcels
On the county tax roll
- In a FEMA flood zone2.4%special flood hazard area
Free account: 25 parcel cards a day on the map, with sale history, road access and elevation. Get started free
Our map has no zoning layer for Union yet. Ask the city's or Union County's planning office which zoning applies to a parcel.
Around Union
Parcels to start with
Flood zones and wetlands
Recorded flood claims in Union
Fewer than 10 insured flood claims were recorded in and around Union from 1978 to Sep 2026. FEMA counts claims on buildings with NFIP flood insurance, so land without an insured building never shows here.
Counted in the 7 census block groups that lie mostly inside Union, so the edges may reach past the town line. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data.
People and new homes in Union
- Population8,077July 2025 estimate, −1.6% since 2020
- Median household income$31,9142020–2024 average, ±$3,428
- New homes permitted3382025, 54 single-family; 4 in 2021
U.S. Census Bureau, Population Estimates Program, Vintage 2025 (May 2026); U.S. Census Bureau, American Community Survey 2020-2024 5-year (B19013) (Jan 2026); U.S. Census Bureau, Building Permits Survey (Sep 2026).
Typical lot sizeThe typical lot, from the roll
The median parcel in Union is 0.34 acre (4,598 parcels with a size).
Acres from each parcel's own outline (the state's parcel layer carries no deeded acres). Condominium units that share one point (each carrying the whole complex's acres) are left out of the lot sizes.
Land parcels in UnionFarm and timber parcels to start with
- 21.0 acres of land
- 20.8 acres of land
- 20.4 acres of land
- 20.4 acres of land
- 20.3 acres of land
- 19.3 acres of land
- 19.2 acres of land
- 18.8 acres of land
- 18.4 acres of land
Land tracts of 5 acres or more, each with its own page of public land facts.
Nearby townsTowns around it
Questions about Union landAnswers from the public records
How many parcels are in Union, SC?
4,598 parcels on the SC Revenue and Fiscal Affairs Office statewide parcel layer for Union County (last edited Sep 2026, pulled Oct 2026), covering 4,655 acres.
How much vacant land is in Union, SC?
Union County's parcels come from the state's parcel layer, which carries no land-use class or building record, so we don't call any Union County parcel vacant.
What is the typical lot size in Union?
The median parcel is 0.34 acre, from 4,598 parcels with a recorded size.
How much of Union is in a flood zone?
2.4% of parcels are in a FEMA special flood hazard area (National Flood Hazard Layer, as of Sep 2026). Check each parcel's own flood line before you buy.
Are there wetlands in Union?
0.3% of parcels are a quarter or more wetland on the USFWS National Wetlands Inventory, a mapping guide, not a legal delineation.
What is Union zoned?
Our map has no zoning layer for Union yet. Ask the city's or Union County's planning office which zoning applies to a parcel.
Are there land prices for Union?
No land prices for Union yet. Area prices print only where South Carolina's own price test passed for the county, and it has not for Union County.
How many people live in Union?
About 8,077 (Census estimate for July 1, 2025), −1.6% since 2020.
How many new homes are being built in Union?
Building permits authorized 338 new housing units in 2025 (Census Building Permits Survey).
Where does this data come from?
Parcels: SC Revenue and Fiscal Affairs Office statewide parcel layer. Flood: FEMA National Flood Hazard Layer. Wetlands: USFWS National Wetlands Inventory. Towns: U.S. Census places. Every figure is counted from those files on our map.
More in Union CountyIts other towns
About these numbersSources, dates and how these figures are built
What Groundwork can price in Union
Facts only: no price estimate on any parcel here.
Sources
Parcels: SC Revenue and Fiscal Affairs Office statewide parcel layer (layer last edited Sep 2026, pulled Oct 2026); flood: FEMA National Flood Hazard Layer (as of Sep 2026); wetlands: USFWS National Wetlands Inventory (as of Oct 2026); town limits: U.S. Census Bureau TIGER/Line places; counted on our map built Oct 2026.