HomeSouth CarolinaMarlboro CountyBlenheim
Blenheim, South Carolina: commercial real estate data.
Blenheim is a Census town of 82 people across 0.65 square miles of land, in Marlboro County. Median household income is $49,167, 65.0 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
This is a small place, and the figures below carry wide margins.
The American Community Survey reaches Blenheim through a sample, not a count, and in a place this size that sample is thin. The population estimate here is 82 with a margin of error of plus or minus 60, which is 73.2 percent of the estimate itself. Every figure whose margin reaches 20 percent is printed with that margin beside it, so you can see the width of each one rather than having to assume it.
Nothing has been removed or adjusted. These are the published federal estimates, shown with the uncertainty the Census publishes alongside them.
Blenheim
What Blenheim is
- Census place typetown
- Land area0.65 sq mi
- Water area0 sq mi
- Population per square mile of land125 plus or minus 92
- County holding the largest share of its areaMarlboro County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Blenheim
How many people live in Blenheim
- Population82 plus or minus 60
- Median age40.9 plus or minus 13.9
- Population under 1811 plus or minus 18
- Share under 1813.4 percent plus or minus 20.2
- Population 65 and over22 plus or minus 24
- Share 65 and over26.8 percent plus or minus 22.0
- Households40 plus or minus 29
- Family households20 plus or minus 20
- Share of households that are families50.0 percent plus or minus 34.4
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Blenheim
Income and work in Blenheim
- Median household income$49,167 plus or minus $21,654
- Per capita income$28,170 plus or minus $10,919
- Civilian labor force54 plus or minus 43
- Employed54 plus or minus 43
- Unemployed0
- Unemployment rate0.0 percent
- Adults 25 and over71 plus or minus 51
- Adults 25 and over with a high school diploma or higher100.0 percent plus or minus 101.2
- Adults 25 and over with a bachelor degree or higher15.5 percent plus or minus 26.7
- Adults 25 and over with a graduate degree0.0 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Blenheim
Housing in Blenheim
- Housing units50 plus or minus 31
- Occupied units40 plus or minus 29
- Vacant units10 plus or minus 12
- Vacancy rate20.0 percent plus or minus 20.5
- Owner occupied26 plus or minus 22
- Renter occupied14 plus or minus 18
- Ownership rate65.0 percent plus or minus 28.4
- Single family units42 plus or minus 31
- Share single family84.0 percent plus or minus 34.8
- Units in buildings of two or more0
- Share in buildings of two or more0.0 percent
- Mobile homes8 plus or minus 12
- Median year structure built1954
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Blenheim
How Blenheim gets to work
- Workers 16 and over who commute43 plus or minus 33
- Commuting under 15 minutes0
- Share commuting under 15 minutes0.0 percent
- Commuting 30 minutes or more30 plus or minus 31
- Share commuting 30 minutes or more69.8 percent plus or minus 49.9
- Drove alone100.0 percent
- Carpooled0.0 percent
- Public transport0.0 percent
- Walked0.0 percent
- Worked from home0.0 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Blenheim
Flood risk in Blenheim
- NFIP communityTown of Blenheim
- NFIP community number450148
- Participating in the NFIPNo
- Community Rating System classNone
- Currently effective map date06/16/11
The Town of Blenheim does not participate in the National Flood Insurance Program as community 450148 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Marlboro County, not Blenheim
Marlboro County context, not Blenheim figures
- Establishments in Marlboro County305
- Covered employment, Marlboro County5,591
- Average annual pay, Marlboro County$53,857
- Housing units permitted, Marlboro County6
Every figure in this section is published for Marlboro County as a whole and is not a measurement of Blenheim.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Blenheim questions, answered from the record.
How many people live in Blenheim, South Carolina?
82, in 40 households. Blenheim town covers 0.65 square miles of land, which is 125 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Blenheim in?
Marlboro County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Blenheim?
$49,167. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is Blenheim in the National Flood Insurance Program?
No, it is listed but not participating. Blenheim appears in the FEMA Community Status Book as Blenheim, town of, community 450148, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Blenheim figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Marlboro County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Blenheim.
Is zoning published for Blenheim?
No. Nothing on this page presents parcel level zoning.
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