23970 ZIP Code, South Hill, VA

23970 is a ZIP code in South Hill, Virginia — mostly in Mecklenburg County (78% of its land), with smaller parts in Lunenburg County. It covers 122 square miles of land. The closest ZIP codes are 23915, 23950 and 23919. 8,109 people live here in 3,652 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (59% own). Median household income is $65,170, below the Virginia median of $93,170; the median age is 45.5, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents8,109
Households3,652
Median household income$65,170
Income per person$46,031
Median age45.5
Homeowners59.4%
Median home value$205,000
Median rent$1,098
Bachelor's degree or higher21.4%
Average commute (minutes)22.4
Households with kids under 1826.1%
Moved in the past year10.4%
Below the poverty line16.7%
Broadband internet73.9%
Speak a non-English language at home7.1%

Household income

% of householdsValue
<$10K7.9%
$10–15K6.7%
$15–25K9.8%
$25–35K6.7%
$35–50K11.4%
$50–75K13.1%
$75–100K12.4%
$100–150K19.4%
$150–200K5.1%
$200K+7.4%

Age

% of all residentsValue
<108.2%
10–1912.3%
20–245.0%
25–3413.1%
35–4411.4%
45–5411.1%
55–6415.6%
65–7412.2%
75+11.2%

Tenure

% of housing unitsValue
Owned, with mortgage28.3%
Owned outright24.0%
Rented35.1%
Vacant12.5%

Type of building

% of housing unitsValue
Detached house66.0%
Townhome3.9%
2–4 units6.4%
5–19 units6.2%
20+ units2.5%
Mobile / other15.0%

Businesses in 23970

340 business establishments with 5,121 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

23970 has 7 USPS carrier routes with 3,867 residential and 378 business mailboxes. Open the EDDM route map.

Carrier routes in 23970

23970 has 7 USPS carrier routes (3 city (C), 4 rural (R)) with 3,867 residential and 378 business mailboxes. Routes range from 427 homes (R003) to 678 homes (C003); the median route has 583 homes. The Census counted 3,652 households in 23970 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4993
500–7494
750–9990
1,000–1,4990
1,500+0

Best routes in 23970 for…

Most businesses

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

  1. Route C001 — USPS business mailboxes 182, 458 homes
  2. Route R004 — USPS business mailboxes 59, 676 homes
  3. Route R001 — USPS business mailboxes 54, 459 homes
  4. Route C002 — USPS business mailboxes 39, 583 homes
  5. Route C003 — USPS business mailboxes 22, 678 homes

Select these 5 routes on the route map

Every carrier route in 23970

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City458182$27,467———
C002City58339$27,467———
C003City67822$66,313———
R001Rural45954$66,693———
R002Rural58613$66,313———
R003Rural4279$43,306———
R004Rural67659$27,467———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 23970 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 23970

Where it ranks

Mail every home in 23970

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) 23970, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 23970 in?
23970 is a South Hill, VA mailing address. By land area, 7% lies inside South Hill and 3% lies inside Union Level; the rest is outside any Census-defined city or community.
What county is 23970 in?
23970 is mostly in Mecklenburg County (78% of its land), with smaller parts in Lunenburg County.
What is the population of 23970?
About 8,109 people (±373), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 8,002.
What is the median household income in 23970?
$65,170 (±$14,278), compared with $93,170 for Virginia as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 23970?
7 USPS carrier routes with 3,867 residential and 378 business mailboxes (4,246 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 23970?
The closest, measured center to center: 23915 (6.6 mi, Baskerville), 23950 (8.1 mi, Bracey), 23919 (11.3 mi, Bracey), 23920 (11.5 mi, Brodnax), 23917 (11.9 mi, Boydton) and 23944 (12.5 mi, Kenbridge).

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