Duncan, SC

Single-footprint Census roll-up for Duncan, SC: 1 USPS ZIP, population 11,331. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet DUNCAN-SC · Duncan, SC 1 ZIPs · 11,331 pop · #8773/25278 · Spartanburg County

INC-HIGH · RANK-UPPER · PHOTO-FINISH · BOOK-ONE · OWN-MID · POP-TOWN · SPREAD-UNK · HOME-MID

  • INC-HIGH $81,413
  • RANK-UPPER #8773/25278
  • PHOTO-FINISH ≈ Moore
  • BOOK-ONE 1 ZIP
  • OWN-MID 75% owners
  • POP-TOWN 11,331
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $295,100

Nearest income peer: Moore, SC (+ $1,511 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Duncan

Lowest/highest poles plus county-sharing cities nearest Duncan on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Duncan, SC sits among US cities with an above-median household income, on a town-scale population base, across a single-ZIP footprint.

Top 35%
household income vs 25,278 US cities
11,331
city population (Census)
1
USPS ZIP codes covered
$81,413
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

Above-median income on a short ZIP list (1) - lead code 29334 (11,331 residents). Household income $81,413 is the roll-up; open the ZIP for tenure and commute.

Owner-occupancy sits in a mixed band (75.3%) - check the ZIP page's tenure split before treating Duncan as a pure owner town.

Within South Carolina, Clarks Hill is the closest lower-income city and Goose Creek the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Duncan.

Population concentration

Duncan reads through its lone ZIP, 29334

11,331 ACS residents, one ZIP: 29334 is not the leading code inside Duncan, it is the only one on file. Treat the ZIP page as the primary source for anything below the city-wide total.

Census ZBP business roll-up

Dense ZBP book packed into Duncan's one ZIP

Citywide ZBP: 530 establishments, 20,099 employees , annual payroll $1,304,382k (~47 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 29334 (530 units) ; leading NAICS Transportation and warehousing (64) · also Wholesale trade · Manufacturing .

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ZIP Codes in Duncan, SC

These ZIP codes sit in Spartanburg County, which covers 32 ZIP codes in all; 1 of them fall in Duncan. See the Spartanburg County roll-up →

No other city sharing Spartanburg County reports a higher average ZIP median income than Duncan. Spartanburg, Inman and Boiling Springs sit below it, so a household comparing this county on income alone starts here. Cowpens marks the far end of that range at $48,243, 41% below Duncan.

ZIP Code Population Median income Establishments Density
29334 11,331 $81,413 530 197

Duncan roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Duncan, .