29574 ZIP Code, Mullins, SC

29574 is a ZIP code in Mullins, South Carolina in Marion County. It covers 98 square miles of land. The closest ZIP codes are 29589, 29543 and 29581. 9,413 people live here in 4,262 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (64% own). Median household income is $34,112, well below the South Carolina median of $69,324.

Quick facts

Key figures

MeasureValue
Residents9,413
Households4,262
Median household income$34,112
Income per person$22,090
Median age42.7
Homeowners64.0%
Median home value$87,200
Median rent$603
Bachelor's degree or higher14.0%
Average commute (minutes)28.6
Households with kids under 1827.1%
Moved in the past year10.5%
Below the poverty line34.0%
Broadband internet67.9%
Speak a non-English language at home1.0%

Household income

% of householdsValue
<$10K17.7%
$10–15K9.4%
$15–25K11.3%
$25–35K12.7%
$35–50K13.3%
$50–75K17.5%
$75–100K6.5%
$100–150K8.7%
$150–200K0.7%
$200K+2.1%

Age

% of all residentsValue
<1014.5%
10–1910.0%
20–246.2%
25–3411.4%
35–4410.1%
45–5411.5%
55–6413.1%
65–7412.5%
75+10.8%

Tenure

% of housing unitsValue
Owned, with mortgage16.5%
Owned outright37.9%
Rented30.5%
Vacant15.1%

Type of building

% of housing unitsValue
Detached house61.5%
Townhome0.5%
2–4 units7.9%
5–19 units0.1%
20+ units0.0%
Mobile / other30.0%

Businesses in 29574

211 business establishments with 2,211 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

29574 has 9 USPS carrier routes with 4,811 residential and 291 business mailboxes. Open the EDDM route map.

Carrier routes in 29574

29574 has 9 USPS carrier routes (3 city (C), 6 rural (R)) with 4,811 residential and 291 business mailboxes. Routes range from 367 homes (C001) to 680 homes (R004); the median route has 593 homes. The Census counted 4,262 households in 29574 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4994
500–7495
750–9990
1,000–1,4990
1,500+0

Best routes in 29574 for…

Most businesses

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

  1. Route R005 — USPS business mailboxes 93, 625 homes
  2. Route C001 — USPS business mailboxes 76, 367 homes
  3. Route C003 — USPS business mailboxes 53, 393 homes
  4. Route C002 — USPS business mailboxes 17, 495 homes
  5. Route R001 — USPS business mailboxes 14, 593 homes

Select these 5 routes on the route map

Every carrier route in 29574

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City36776$44,524———
C002City49517$37,081———
C003City39353$35,662———
R001Rural59314$35,107———
R002Rural6679$49,812———
R003Rural5959$37,081———
R004Rural68013$37,081———
R005Rural62593$47,180———
R006Rural3967$49,812———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 29574 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 29574

Mail every home in 29574

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) 29574, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 29574 in?
29574 is a Mullins, SC mailing address. By land area, 3% lies inside Mullins; the rest is outside any Census-defined city or community.
What county is 29574 in?
29574 is in Marion County.
What is the population of 29574?
About 9,413 people (±765), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 10,232.
What is the median household income in 29574?
$34,112 (±$10,742), 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 29574?
9 USPS carrier routes with 4,811 residential and 291 business mailboxes (5,104 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 29574?
The closest, measured center to center: 29589 (5.6 mi, Rains), 29543 (8.4 mi), 29581 (8.6 mi, Ketchuptown), 29571 (9.6 mi, Marion), 29544 (11.5 mi, Aynor) and 29519 (11.8 mi, Centenary).

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