33870 ZIP Code, Sebring, FL

33870 is a ZIP code in Sebring, Florida in Highlands County. It covers 95 square miles of land. The closest ZIP codes are 33876, 33825 and 33875. 25,195 people live here in 11,165 households. With about 264 people per square mile it is lightly settled, and owners and renters are mixed (69% own). Median household income is $49,942, well below the Florida median of $74,568; the median age is 49.4, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents25,195
Households11,165
Median household income$49,942
Income per person$29,032
Median age49.4
Homeowners68.7%
Median home value$165,100
Median rent$1,030
Bachelor's degree or higher19.2%
Average commute (minutes)21.5
Households with kids under 1821.8%
Moved in the past year14.7%
Below the poverty line18.5%
Broadband internet87.9%
Speak a non-English language at home22.7%

Household income

% of householdsValue
<$10K8.8%
$10–15K6.0%
$15–25K11.3%
$25–35K9.8%
$35–50K14.1%
$50–75K22.4%
$75–100K9.6%
$100–150K11.6%
$150–200K2.5%
$200K+3.7%

Age

% of all residentsValue
<1010.0%
10–1911.1%
20–244.0%
25–348.2%
35–4411.1%
45–5410.3%
55–6413.4%
65–7417.2%
75+14.9%

Tenure

% of housing unitsValue
Owned, with mortgage22.5%
Owned outright33.0%
Rented25.0%
Vacant19.5%

Type of building

% of housing unitsValue
Detached house51.3%
Townhome4.2%
2–4 units9.1%
5–19 units4.2%
20+ units4.9%
Mobile / other26.3%

Businesses in 33870

855 business establishments with 11,570 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

33870 has 18 USPS carrier routes with 12,904 residential and 1,390 business mailboxes. Open the EDDM route map.

Carrier routes in 33870

33870 has 18 USPS carrier routes (12 city (C), 6 rural (R)) with 12,904 residential and 1,390 business mailboxes. Routes range from 478 homes (C056) to 1,126 homes (C011); the median route has 690 homes. The Census counted 11,165 households in 33870 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4991
500–7499
750–9997
1,000–1,4991
1,500+0

Best routes in 33870 for…

Most businesses

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

  1. Route C013 — USPS business mailboxes 219, 769 homes
  2. Route C014 — USPS business mailboxes 177, 693 homes
  3. Route C008 — USPS business mailboxes 168, 757 homes
  4. Route C001 — USPS business mailboxes 157, 754 homes
  5. Route C059 — USPS business mailboxes 135, 785 homes

Select these 5 routes on the route map

Every carrier route in 33870

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City754157$40,917———
C002City65729$65,660———
C003City687124$60,932———
C005City67273$60,932———
C008City757168$33,298———
C011City1,12658$24,384———
C012City8855$60,932———
C013City769219$29,823———
C014City693177$56,592———
C056City47869$33,298———
C059City785135$60,932———
C060City9130$46,067———
R031Rural52310$38,487———
R033Rural63490$57,768———
R037Rural6533$66,976———
R039Rural52453$43,781———
R081Rural6407$61,604———
R083Rural75413$43,781———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 33870 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 33870

Where it ranks

Mail every home in 33870

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) 33870, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 33870 in?
33870 is a Sebring, FL mailing address. By land area, 6% lies inside Sebring; the rest is outside any Census-defined city or community.
What county is 33870 in?
33870 is in Highlands County.
What is the population of 33870?
About 25,195 people (±1,234), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 24,238.
What is the median household income in 33870?
$49,942 (±$4,660), compared with $74,568 for Florida as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 33870?
18 USPS carrier routes with 12,904 residential and 1,390 business mailboxes (14,294 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 33870?
The closest, measured center to center: 33876 (5.7 mi, Sebring), 33825 (9.8 mi, Avon Park), 33875 (9.8 mi, Sebring), 33872 (10.9 mi), 33857 (15.9 mi) and 33852 (16.9 mi, Lake Placid).

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