ZIP Codes of Seminole County, FL

Population & People
Population & People
Total Population
492,012
Household Income
Household Income
Median Income
$91,578
Housing
Housing
Total Housing Units
199,775
Business & Economy
Business & Economy
Total Businesses
14,870
Employment
Employment
Employment Rate
63.74%
Education
Education
Bachelor's Degree+
42.25%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 27 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:27 ZIP Codes (14 Standard, 13 PO Box, 0 Unique) [See All]
Area Codes:321 / 407 / 689
Timezone:Eastern (GMT -05:00)
Local Time:11:52:57 PM
Population:492,012 [See All]
FIPS:12117
CBSA:Orlando-Kissimmee-Sanford, FL
Land Area:412 sq mi
Water Area:36 sq mi
Coordinates:28.7113, -81.3188
Quick Link:
https://www.zip-codes.com/county/fl-seminole.asp
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Among Florida's 5 most-educated counties
42.2% with bachelor's+ (#4 statewide).
Notable income spread
Median income ranges $47,500 to $147,552 across ZIPs — a 3.1× gap.
Striking education divide
Bachelor's share spans 24.5% to 56.6% — a 32-point gap.

Standout ZIPs in this County


Most Populous
Oviedo · 64,477 people
13.1% of county total
Highest Income
Oviedo · $147,552 median
1.6× county average
Largest Land Area
Apopka · 63.2 sq mi
Spans the most ground
Fastest Growth
Sanford · 28.4% (10-yr)
48,740 → 62,606 residents
Most Educated
Longwood · 56.6% bachelor's+
12,103 of 21,395 adults 25+

Things worth knowing about Seminole County


492,012 residents live across 27 ZIPs covering 412 sq mi, served by 12 distinct USPS-recognized cities.

Population moved from 434,497 to 492,012 from 2014 to 2024 — a +13.2% change. 13 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 32766 (Oviedo, $147,552 median) and poorest ZIP 32730 (Casselberry, $47,500) are 15.4 miles apart — a 3.1× income gap across local geography.

Median home values vary 2.0× across this county — from $287,700 in 32773 (Sanford) to $564,400 in 32766 (Oviedo).

Density varies 48× across the county — from 91 people/sq mi in 32732 (Geneva) to 4,358 in 32730 (Casselberry).

Educational attainment ranges from 24.5% bachelor's+ in 32773 (Sanford) to 56.6% in 32779 (Longwood) — the breadth of educational profiles across the area.

Within Florida, this is the #13 most populous of 67 counties and ranks #7 for median household income with the #31 fastest decade growth .

Weighted by population, the typical household earns about $91,203 across the county — reflecting what a typical resident sees, not a simple ZIP average.

42.2% of adults age 25+ hold a bachelor's degree or higher (147,636 of 349,474 reporting). The most-educated ZIPs cluster around Oviedo.

14 Standard delivery, 13 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Seminole County


Two counties in one

Median household income spans 3.1× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.

Wealthiest ZIP
Oviedo
Median income: $147,552
Population: 16,221
Bachelor's+: 53.1%
vs
Poorest ZIP (pop >= 500)
Casselberry
Median income: $47,500
Population: 6,091
Bachelor's+: 27.4%
For every $1 of household income in 32730, the typical household in 32766 earns $3.11.

All ZIP Codes in Seminole County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
32765OviedoStandard64,477$102,16744.37.7%
32771SanfordStandard62,606$77,86853.528.4%
32712ApopkaStandard50,583$108,73463.218.5%
32708Winter SpringsStandard48,965$93,62818.013.0%
32746Lake MaryStandard46,684$104,77523.416.2%
32707CasselberryStandard39,493$69,11310.711.3%
32714Altamonte SpringsStandard37,905$70,9558.89.1%
32773SanfordStandard34,032$70,44235.016.7%
32779LongwoodStandard28,924$121,82625.9-4.2%
32750LongwoodStandard26,164$86,12512.012.2%
32701Altamonte SpringsStandard24,592$62,1986.115.1%
32766OviedoStandard16,221$147,55251.63.8%
32730CasselberryStandard6,091$47,5001.47.4%
32732GenevaStandard5,275$119,20557.927.3%
32795Lake MaryPO Box0.0
32745Mid FloridaPO Box0.0
32799Mid FloridaPO Box0.0
32772SanfordPO Box0.0
32747Lake MonroePO Box0.0
32733GoldenrodPO Box0.0
32791LongwoodPO Box0.0
32752LongwoodPO Box0.0
32719Winter SpringsPO Box0.0
32718CasselberryPO Box0.0
32716Altamonte SpringsPO Box0.0
32715Altamonte SpringsPO Box0.0
32762OviedoPO Box0.0

Adjacent & Nearby Counties