HomeSouth CarolinaSpartanburg CountyDuncan
Duncan, South Carolina: commercial real estate data.
Duncan is a Census town of 4,310 people across 6.62 square miles of land, in Spartanburg County. Median household income is $52,500, 56.7 percent of occupied homes are owned, and the SBA record carries 35 7(a) approvals to borrowers here worth $23.7 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Duncan
What Duncan is
- Census place typetown
- Land area6.62 sq mi
- Water area0.12 sq mi
- Population per square mile of land651
- County holding the largest share of its areaSpartanburg 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.
Duncan
How many people live in Duncan
- Population4,310
- Median age34.4
- Population under 181,024 plus or minus 356
- Share under 1823.8 percent plus or minus 8.3
- Population 65 and over429 plus or minus 259
- Share 65 and over10.0 percent plus or minus 6.0
- Households1,868
- Family households1,070
- Share of households that are families57.3 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Duncan
Income and work in Duncan
- Median household income$52,500 plus or minus $29,327
- Per capita income$37,672 plus or minus $13,052
- Civilian labor force2,426
- Employed2,294
- Unemployed132 plus or minus 115
- Unemployment rate5.4 percent plus or minus 4.7
- Adults 25 and over3,117
- Adults 25 and over with a high school diploma or higher89.3 percent
- Adults 25 and over with a bachelor degree or higher29.5 percent plus or minus 10.8
- Adults 25 and over with a graduate degree7.9 percent plus or minus 5.9
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Duncan
Housing in Duncan
- Housing units2,054
- Occupied units1,868
- Vacant units186 plus or minus 174
- Vacancy rate9.1 percent plus or minus 8.4
- Owner occupied1,059 plus or minus 281
- Renter occupied809 plus or minus 252
- Ownership rate56.7 percent plus or minus 12.9
- Median owner-occupied home value$211,400
- Median gross rent, monthly$1,032
- Annual rent as a share of median income23.6 percent plus or minus 13.8
- Single family units1,340 plus or minus 371
- Share single family65.2 percent plus or minus 15.6
- Units in buildings of two or more568 plus or minus 281
- Share in buildings of two or more27.7 percent plus or minus 13.1
- Mobile homes146 plus or minus 91
- Median year structure built2001
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Duncan
How Duncan gets to work
- Workers 16 and over who commute2,137
- Commuting under 15 minutes535 plus or minus 256
- Share commuting under 15 minutes25.0 percent plus or minus 11.1
- Commuting 30 minutes or more859 plus or minus 327
- Share commuting 30 minutes or more40.2 percent plus or minus 13.6
- Drove alone86.5 percent
- Carpooled12.1 percent plus or minus 7.5
- Public transport0.0 percent
- Walked0.0 percent
- Worked from home1.4 percent plus or minus 2.2
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Duncan
SBA loans in Duncan (7(a))
- Approvals35
- Gross approval$23,706,100
- Average approval$677,317
- Median approval$250,000
- Ninetieth percentile approval$1,802,000
- Largest approval$4,500,000
- Jobs supported329
- Jobs per approval9.4
- Loans with a final outcome5
- Paid in full5
- Charged off0
- Median term120 months
- Share on real estate terms of 20 years or more25.7 percent
- Share to franchises17.1 percent
- Distinct lenders18
- Distinct industries by NAICS22
Counted by borrower city: approvals to borrowers whose address is in Duncan, in any county, FY2020 to FY2026. Only 5 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Duncan
SBA loans in Duncan (504)
- Approvals4
- Gross approval$4,739,000
- Average approval$1,184,750
- Median approval$1,074,000
- Largest approval$2,376,000
- Jobs supported57
- Loans with a final outcome2
- Charged off0
- Median term270 months
- Distinct CDCs2
Counted by borrower city: approvals to borrowers whose address is in Duncan, in any county, FY2010 to FY2026. Only 2 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Duncan
Flood risk in Duncan
- NFIP communityTown of Duncan
- NFIP community number450177
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date05/04/21
The Town of Duncan participates in the National Flood Insurance Program as community 450177 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.
Spartanburg County, not Duncan
Spartanburg County context, not Duncan figures
- Establishments in Spartanburg County7,399
- Covered employment, Spartanburg County155,484
- Average annual pay, Spartanburg County$59,564
- Housing units permitted, Spartanburg County3,129
Every figure in this section is published for Spartanburg County as a whole and is not a measurement of Duncan.
All Spartanburg County figures →
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
Duncan questions, answered from the record.
How many people live in Duncan, South Carolina?
4,310, in 1,868 households. Duncan town covers 6.62 square miles of land, which is 651 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Duncan in?
Spartanburg 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 Duncan?
$52,500. The median owner-occupied home is valued at $211,400. Median gross rent is $1,032 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Duncan businesses?
35 7(a) approvals totaling $23.7 m since FY2020, across 18 lenders, median approval $250,000, plus 4 504 approvals worth $4.7 m since FY2010. These count approvals to borrowers whose address is in Duncan, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Duncan borrowers get paid back?
No rate is published for Duncan. Only 5 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Is Duncan in the National Flood Insurance Program?
Yes. Duncan appears in the FEMA Community Status Book as Duncan, town of, community 450177, 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 Duncan figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Spartanburg 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 Duncan.
Is zoning published for Duncan?
No. Nothing on this page presents parcel level zoning.
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