Nassau County, Florida
Nassau County, Florida, has 106,879 residents (July 2025 estimate). Its county seat is Fernandina Beach. It uses Eastern Time and covers 649 sq mi (1,680 km²) of land.
- Resident population, July 2025
- 106,879
- Land area
- 649 sq mi (1,680 km²)
- County seat or government
- Fernandina Beach
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $89,804 ± $4,034
- Median home value
- $382,800 ± $9,501
- Median rent, with utilities
- $1,526 ± $131
- Homes lived in by their owners
- 82.7% ± 1.2 points
- County type
- County
- Metro or micro area
- Jacksonville, FL metro areaOutlying county
- Water area
- 77.2 sq mi (200 km²)
- State
- Florida
- County code (FIPS)
- 12089
- Coordinates (central point)
- 30.605963, -81.765087
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Nassau County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 3203441,029 people
- 3209726,700 people
- 3201115,421 people
- 3204610,593 people
- 322349,678 people
- 320094,045 people
6 ZIP Code areas overlap Nassau County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Nassau County, largest first
- Nassau County School District97,859 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Yulee, Florida (CDP)16,648 people
- Fernandina Beach, Florida (city)13,420 people
- Nassau Village-Ratliff, Florida (CDP)4,737 people
- Hilliard, Florida (town)3,034 people
- Callahan, Florida (town)1,514 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Duval County, Florida20 mi south
- Camden County, Georgia22 mi north
- Charlton County, Georgia25 mi northwest
- Baker County, Florida37 mi southwest
Before using this answer on a form
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