29148 ZIP Code, Summerton, SC

29148 is a ZIP code in Summerton, South Carolina in Clarendon County. It covers 105 square miles of land. The closest ZIP codes are 29048, 29163 and 29102. 6,033 people live here in 2,430 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (75%). Median household income is $56,300, below the South Carolina median of $69,324; the median age is 50.5, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents6,033
Households2,430
Median household income$56,300
Income per person$29,749
Median age50.5
Homeowners75.2%
Median home value$185,200
Median rent$788
Bachelor's degree or higher24.0%
Average commute (minutes)41.7
Households with kids under 1827.5%
Moved in the past year8.8%
Below the poverty line11.8%
Broadband internet89.9%
Speak a non-English language at home2.0%

Household income

% of householdsValue
<$10K7.9%
$10–15K4.8%
$15–25K11.3%
$25–35K8.8%
$35–50K12.7%
$50–75K24.7%
$75–100K7.4%
$100–150K13.7%
$150–200K3.9%
$200K+4.8%

Age

% of all residentsValue
<106.1%
10–1911.2%
20–247.2%
25–349.7%
35–449.3%
45–5411.9%
55–6415.2%
65–7418.1%
75+11.3%

Tenure

% of housing unitsValue
Owned, with mortgage20.4%
Owned outright26.3%
Rented15.4%
Vacant37.9%

Type of building

% of housing unitsValue
Detached house51.8%
Townhome0.1%
2–4 units1.8%
5–19 units3.3%
20+ units0.2%
Mobile / other42.8%

Businesses in 29148

79 business establishments with 556 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

29148 has 6 USPS carrier routes with 3,224 residential and 70 business mailboxes. Open the EDDM route map.

Carrier routes in 29148

29148 has 6 USPS carrier routes (6 rural (R)) with 3,224 residential and 70 business mailboxes. Routes range from 236 homes (R006) to 654 homes (R002); the median route has 591 homes. The Census counted 2,430 households in 29148 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4990
500–7495
750–9990
1,000–1,4990
1,500+0

Best routes in 29148 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R006 — USPS business mailboxes 15, 236 homes
  2. Route R005 — USPS business mailboxes 14, 567 homes
  3. Route R004 — USPS business mailboxes 13, 614 homes
  4. Route R002 — USPS business mailboxes 11, 654 homes
  5. Route R003 — USPS business mailboxes 10, 528 homes

Select these 5 routes on the route map

Every carrier route in 29148

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R001Rural6257$41,865———
R002Rural65411$41,865———
R003Rural52810$45,387———
R004Rural61413$54,244———
R005Rural56714$54,244———
R006Rural23615$41,865———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 29148 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 29148

Where it ranks

Mail every home in 29148

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 29148, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 29148 in?
29148 is a Summerton, SC mailing address. By land area, 9% lies inside North Santee, 4% lies inside Wyboo and 1% lies inside Summerton; the rest is outside any Census-defined city or community.
What county is 29148 in?
29148 is in Clarendon County.
What is the population of 29148?
About 6,033 people (±583), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,856.
What is the median household income in 29148?
$56,300 (±$8,136), compared with $69,324 for South Carolina as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 29148?
6 USPS carrier routes with 3,224 residential and 70 business mailboxes (3,294 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 29148?
The closest, measured center to center: 29048 (10.2 mi, Eutawville), 29163 (10.3 mi, Vance), 29102 (11.3 mi, Wyboo), 29142 (11.8 mi, Santee), 29125 (13.7 mi, Pinewood) and 29047 (14.1 mi, Elloree).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.