PlainZIP

Seabrook, SC

Single-footprint Census roll-up for Seabrook, SC: 1 USPS ZIP, population 3,967. 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 SEABROOK-SC · Seabrook, SC 1 ZIPs · 3,967 pop · #20298/25278 · Beaufort County

INC-MID · RANK-BOTTOM · BELOW-PEER · BOOK-ONE · OWN-HIGH · POP-VILLAGE · SPREAD-UNK · HOME-LOW

  • INC-MID $54,177
  • RANK-BOTTOM #20298/25278
  • BELOW-PEER under Port Royal
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 86% owners
  • POP-VILLAGE 3,967
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $172,100

Nearest income peer: Port Royal, SC (+ $22,367 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 Seabrook

Lowest/highest poles plus county-sharing cities nearest Seabrook 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, Seabrook, SC sits among US cities with one of the lowest household incomes among US cities, on a village-scale population base, across a single-ZIP footprint.

20th pct
household income vs 25,278 US cities
3,967
city population (Census)
1
USPS ZIP codes covered
$54,177
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.

Lower-income footing on only 1 ZIP ($54,177 average) · poverty 20.4%. The primary code (29940) carries the ACS household fields that matter.

Owner-occupancy here runs high (86.1%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within South Carolina, Santee is the closest lower-income city and Arcadia the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Seabrook.

Population concentration

Seabrook reads through its lone ZIP, 29940

3,967 ACS residents, one ZIP: 29940 is not the leading code inside Seabrook, 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

Sparse ZBP book inside single-ZIP Seabrook

Citywide ZBP: 28 establishments, 177 employees , annual payroll $11,144k (~7 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 29940 (28 units) ; leading NAICS Construction (8) · also Administrative and support and waste management and remediation services · Manufacturing .

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ZIP Codes in Seabrook, SC

These ZIP codes sit in Beaufort County, which covers 14 ZIP codes in all; 1 of them fall in Seabrook. See the Beaufort County roll-up →

Every one of the 8 cities sharing Beaufort County reports a higher average ZIP median income than Seabrook, Beaufort, Hilton Head Island and Bluffton among them. That gap is the county's income spread, not a measure of the housing or commute picture below. Daufuskie Island marks the far end of that range at $156,090, 188% above Seabrook.

ZIP Code Population Median income Establishments Density
29940 3,967 $54,177 28 27
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Seabrook 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 Seabrook, .