ZIP Codes of Baker County, FL

Population & People
Population & People
Total Population
28,197
Household Income
Household Income
Median Income
$75,625
Housing
Housing
Total Housing Units
10,022
Business & Economy
Business & Economy
Total Businesses
462
Employment
Employment
Employment Rate
53.24%
Education
Education
Bachelor's Degree+
17.55%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:3 ZIP Codes (3 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:324 / 904
Timezone:Eastern (GMT -05:00)
Local Time:2:11:36 PM
Population:28,197 [See All]
FIPS:12003
CBSA:Jacksonville, FL
Land Area:613 sq mi
Water Area:1 sq mi
Coordinates:30.2963, -82.2200
Quick Link:
https://www.zip-codes.com/county/fl-baker.asp
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Owner-dominated county
Just 15.0% of homes are rentals — strong homeownership culture.

Standout ZIPs in this County


Most Populous
Macclenny · 14,611 people
51.8% of county total
Highest Income
Glen Saint Mary · $84,095 median
1.1× county average
Largest Land Area
Sanderson · 409.5 sq mi
Spans the most ground
Fastest Growth
Glen Saint Mary · 24.3% (10-yr)
7,221 → 8,978 residents
Most Educated
Macclenny · 22.9% bachelor's+
2,077 of 9,054 adults 25+

Things worth knowing about Baker County


28,197 residents live across 3 ZIPs covering 613 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 26,743 to 28,197 from 2014 to 2024 — a +5.4% change. 2 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 32040 (Glen Saint Mary, $84,095 median) and poorest ZIP 32087 (Sanderson, $67,097) are 11.0 miles apart — a 1.3× income gap across local geography.

Median home values vary 1.1× across this county — from $242,800 in 32087 (Sanderson) to $261,500 in 32040 (Glen Saint Mary).

Density varies 17× across the county — from 11 people/sq mi in 32087 (Sanderson) to 192 in 32063 (Macclenny).

Educational attainment ranges from 4.5% bachelor's+ in 32087 (Sanderson) to 22.9% in 32063 (Macclenny) — the breadth of educational profiles across the area.

Within Florida, this is the #50 most populous of 67 counties and ranks #25 for median household income with the #43 fastest decade growth .

Weighted by population, the typical household earns about $76,958 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.5% of adults age 25+ hold a bachelor's degree or higher (3,297 of 18,787 reporting).

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

Stories about Baker County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
613
square miles
Avg density
46.0
people per sq mi
Population
28,197
across 3 ZIPs
Sanderson
409.5 sq mi
4,608 residents
Glen Saint Mary
127.6 sq mi
8,978 residents
Macclenny
76.3 sq mi
14,611 residents

All ZIP Codes in Baker County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
32063MacclennyStandard14,611$75,68376.35.3%
32040Glen Saint MaryStandard8,978$84,095127.624.3%
32087SandersonStandard4,608$67,097409.5-18.4%

Adjacent & Nearby Counties