ZIP Codes of Martin County, FL

Population & People
Population & People
Total Population
160,167
Household Income
Household Income
Median Income
$79,925
Housing
Housing
Total Housing Units
86,538
Business & Economy
Business & Economy
Total Businesses
6,338
Employment
Employment
Employment Rate
48.91%
Education
Education
Bachelor's Degree+
36.84%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 12 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:12 ZIP Codes (7 Standard, 5 PO Box, 0 Unique) [See All]
Area Code:772
Timezone:Eastern (GMT -05:00)
Local Time:2:11:39 PM
Population:160,167 [See All]
FIPS:12085
CBSA:Port St. Lucie, FL
Land Area:501 sq mi
Water Area:56 sq mi
Coordinates:27.1448, -80.2594
Quick Link:
https://www.zip-codes.com/county/fl-martin.asp
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Striking education divide
Bachelor's share spans 11.3% to 47.7% — a 36-point gap.

Standout ZIPs in this County


Most Populous
Stuart · 47,075 people
29.4% of county total
Highest Income
Palm City · $129,560 median
1.6× county average
Largest Land Area
Indiantown · 201.9 sq mi
Spans the most ground
Fastest Growth
Stuart · 11.8% (10-yr)
16,762 → 18,737 residents
Most Educated
Palm City · 47.7% bachelor's+
11,004 of 23,084 adults 25+

Things worth knowing about Martin County


160,167 residents live across 12 ZIPs covering 501 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 149,753 to 160,167 from 2014 to 2024 — a +7.0% change. 5 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 34990 (Palm City, $129,560 median) and poorest ZIP 34994 (Stuart, $62,533) are 8.0 miles apart — a 2.1× income gap across local geography.

Median home values vary 2.7× across this county — from $217,000 in 34956 (Indiantown) to $592,400 in 34990 (Palm City).

Density varies 41× across the county — from 48 people/sq mi in 34956 (Indiantown) to 1,944 in 34994 (Stuart).

Most of the decade's growth concentrated around Stuart — top growth ZIPs averaged +11.3% over the past ten years ( 34994 , 34997 and 34990 ).

Educational attainment ranges from 11.3% bachelor's+ in 34956 (Indiantown) to 47.7% in 34990 (Palm City) — the breadth of educational profiles across the area.

Within Florida, this is the #33 most populous of 67 counties and ranks #18 for median household income with the #38 fastest decade growth .

Weighted by population, the typical household earns about $83,599 across the county — reflecting what a typical resident sees, not a simple ZIP average.

36.8% of adults age 25+ hold a bachelor's degree or higher (46,124 of 125,195 reporting).

7 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Martin County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
34997StuartStandard47,075$78,13697.211.7%
34990Palm CityStandard30,592$129,560110.910.5%
34957Jensen BeachStandard23,462$70,40320.18.6%
33455Hobe SoundStandard20,018$70,38953.0-4.8%
34994StuartStandard18,737$62,5339.611.8%
34996StuartStandard10,653$83,9298.43.8%
34956IndiantownStandard9,630$64,526201.9-6.1%
33475Hobe SoundPO Box0.0
34992Port SalernoPO Box0.0
34991Palm CityPO Box0.0
34995StuartPO Box0.0
34958Jensen BeachPO Box0.0

Adjacent & Nearby Counties