33812 ZIP Code, Lakeland, FL

33812 is a ZIP code in Lakeland, Florida in Polk County. It covers 9.7 square miles of land. The closest ZIP codes are 33813, 33840 and 33803. 16,169 people live here in 5,327 households. At about 1,672 people per square mile it has suburban density, and most homes are owner-occupied (79%). Median household income is $103,052, above the Florida median of $74,568.

Quick facts

Key figures

MeasureValue
Residents16,169
Households5,327
Median household income$103,052
Income per person$44,127
Median age40.2
Homeowners79.1%
Median home value$373,700
Median rent$1,834
Bachelor's degree or higher34.8%
Average commute (minutes)30.5
Households with kids under 1838.2%
Moved in the past year10.9%
Below the poverty line4.8%
Broadband internet95.6%
Speak a non-English language at home17.7%

Household income

% of householdsValue
<$10K2.3%
$10–15K0.9%
$15–25K5.3%
$25–35K4.9%
$35–50K4.1%
$50–75K16.1%
$75–100K13.9%
$100–150K27.7%
$150–200K13.2%
$200K+11.5%

Age

% of all residentsValue
<1012.3%
10–1915.2%
20–244.8%
25–3411.6%
35–4414.7%
45–5413.5%
55–6413.1%
65–749.4%
75+5.4%

Tenure

% of housing unitsValue
Owned, with mortgage52.4%
Owned outright20.6%
Rented19.2%
Vacant7.8%

Type of building

% of housing unitsValue
Detached house80.8%
Townhome2.5%
2–4 units1.7%
5–19 units5.7%
20+ units2.6%
Mobile / other6.6%

Businesses in 33812

210 business establishments with 1,752 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

33812 has 9 USPS carrier routes with 6,106 residential and 116 business mailboxes. Open the EDDM route map.

Carrier routes in 33812

33812 has 9 USPS carrier routes (9 rural (R)) with 6,106 residential and 116 business mailboxes. Routes range from 466 homes (R122) to 759 homes (R100); the median route has 704 homes. The Census counted 5,327 households in 33812 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4991
500–7496
750–9992
1,000–1,4990
1,500+0

Best routes in 33812 for…

Most businesses

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

  1. Route R064 — USPS business mailboxes 42, 704 homes
  2. Route R096 — USPS business mailboxes 30, 758 homes
  3. Route R013 — USPS business mailboxes 25, 636 homes
  4. Route R122 — USPS business mailboxes 13, 466 homes
  5. Route R027 — USPS business mailboxes 3, 740 homes

Select these 5 routes on the route map

Every carrier route in 33812

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R013Rural63625$102,074———
R027Rural7403$79,910———
R048Rural7460$108,318———
R063Rural6651$108,318———
R064Rural70442$102,074———
R086Rural6322$105,325———
R096Rural75830$119,352———
R100Rural7590$108,983———
R122Rural46613$108,318———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 33812 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 33812

Where it ranks

Mail every home in 33812

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) 33812, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 33812 in?
33812 is a Lakeland, FL mailing address. By land area, 59% lies inside Highland City; the rest is outside any Census-defined city or community.
What county is 33812 in?
33812 is in Polk County.
What is the population of 33812?
About 16,169 people (±1,725), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 14,907.
What is the median household income in 33812?
$103,052 (±$5,707), 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 33812?
9 USPS carrier routes with 6,106 residential and 116 business mailboxes (6,223 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 33812?
The closest, measured center to center: 33813 (2.6 mi, Lakeland Highlands), 33840 (2.7 mi), 33803 (3.7 mi, Lakeland), 33801 (4.5 mi, Lakeland), 33880 (7.3 mi, Jan Phyl Village) and 33811 (7.4 mi, Lakeland).

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