County · Florida
Nassau County, Florida
Nassau County, Florida. Nassau County had 106,879 residents in 2025 by the Census Bureau's estimate, up 18.3% since 2020, faster than Florida (+8.9%). It holds 5 places (3 cities, villages and boroughs and 2 census-designated) and 24 census tracts. GEOID 12089.
Nassau County is one of the 5 counties of the Jacksonville, FL metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
106,879
Census Bureau estimate (no margin published)
2020 Census count: 90,352 · ACS 2020-2024: 97,859
Median household income
$89,804
±$4,034 (90% margin)
Florida: $74,568
Median home value
$382,800
±$9,501 (90% margin)
Florida: $359,000
Median gross rent
$1,526
±$131 (90% margin)
Florida: $1,669
How many people live in Nassau County, and is it growing?
The 2020 Census counted 90,352 residents in Nassau County. The Census Bureau estimates 106,879 for July 1, 2025, up 18.3% since 2020, faster than Florida (+8.9%). The 2020-2024 American Community Survey puts the population at 97,859 over 649 square miles of land.
| Measure | Nassau County | Florida | Change since 2015-2019 |
|---|---|---|---|
| Total population | 97,859 | 22,416,077 | +14,761 |
| Households | 39,307±611 | 8,752,810 | +6,704 |
| Average household size | 2.47±0.04 | 2.51 | no clear change |
| Housing units | 45,058±65 | 10,256,470 | +6,083 |
Nassau County's population since 2000
From 57,663 in 2000 to 106,879 in 2025: up 85.4%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Nassau County?
Nassau County holds 5 places: 3 cities, villages and boroughs (incorporated places) and 2 census-designated places. The largest is Yulee with 16,648 residents (2020-2024). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Yulee | 14,195 | $85,247 |
|---|---|---|
| Fernandina Beach | 13,052 | $97,903 |
| Nassau Village-Ratliff | 5,561 | $62,417 |
| Hilliard | 2,967 | $65,096 |
| Callahan | 1,526 | $57,006 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Nassau County?
The median resident of Nassau County is 46.5 years old; 19.3% are under 18 and 23.9% are 65 or older. The largest group is non-Hispanic white residents at 83.4%, then Hispanic or Latino residents (of any race) at 5.7%. 3.9% of residents were born outside the United States.
| Measure | Nassau County | Florida | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.5±0.5 | 42.6 | +1.2 |
| Under 18 years | 19.3% | 19.5% | – |
| 65 years and over | 23.9%±0.1 pts | 21.3% | – |
| Hispanic or Latino (any race) | 5.7% | 27.4% | +1.4 pts |
| White alone, not Hispanic | 83.4%±0.6 pts | 50.4% | −3.7 pts |
| Black or African American alone, not Hispanic | 5.5%±0.4 pts | 14.6% | no clear change |
| Asian alone, not Hispanic | 1.3%±0.2 pts | 2.9% | +0.3 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Two or more races, not Hispanic | 3.3%±0.5 pts | 3.8% | – |
| Some other race alone, not Hispanic | 0.6%±0.4 pts | 0.7% | – |
| Born outside the United States | 3.9%±0.6 pts | 21.9% | no clear change |
| Speak a language other than English at home (age 5+) | 5.6%±0.8 pts | 30.6% | – |
| Civilian veterans (age 18+) | 11.0%±0.9 pts | 7.4% | – |
| With a disability | 16.2%±1.1 pts | 13.7% | – |
| No health insurance coverage | 7.2%±1.0 pts | 11.5% | −3.3 pts |
| High school graduate or higher (age 25+) | 92.9%±0.9 pts | 89.9% | – |
| Bachelor's degree or higher (age 25+) | 35.6%±1.9 pts | 34.1% | +6.0 pts |
| Graduate or professional degree (age 25+) | 13.4%±1.1 pts | 12.9% | – |
| Moved from another state in the past year | 5.4%±1.1 pts | 2.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Nassau County earn?
Half of Nassau County's 39,307 households earn less than $89,804 a year (±$4,034), against $74,568 in Florida. In 2015-2019 it was $86,078 in 2024 dollars; the margins of error cannot tell the two periods apart. 9.7% of residents live below the poverty line.
| Measure | Nassau County | Florida | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $89,804±$4,034 | $74,568 | no clear change |
| Mean household income | $116,081±$3,905 | $105,967 | – |
| Per capita income | $47,685±$1,504 | $42,609 | +$2,699 |
| People below the poverty line | 9.7%±1.4 pts | 12.6% | no clear change |
| Children under 18 below the poverty line | 16.6%±4.1 pts | 16.5% | no clear change |
| Households receiving SNAP | 6.9%±1.2 pts | 12.6% | – |
| Households with a broadband subscription | 94.6%±1.0 pts | 91.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Nassau County?
Owners occupy 82.7% of Nassau County's occupied homes and renters 17.3%. The median owner-occupied home is valued at $382,800 by its owner (±$9,501). The median renter pays $1,526 a month including utilities, and 44.3% of renters pay 35% or more of their income on rent.
| Measure | Nassau County | Florida | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $382,800±$9,501 | $359,000 | +$98,633 |
| Median gross rent | $1,526±$131 | $1,669 | +$239 |
| Renters paying 35% or more of income on rent | 44.3%±6.3 pts | 50.2% | no clear change |
| Median monthly owner costs, with a mortgage | $1,849±$44 | $1,959 | – |
| Owner-occupied homes | 82.7%±1.7 pts | 67.6% | +2.7 pts |
| Housing units | 45,058±65 | 10,256,470 | +6,083 |
| Homeowner vacancy rate | 1.1%±0.6 pts | 1.4% | – |
| Rental vacancy rate | 9.2%±3.6 pts | 7.6% | – |
| Single-family detached homes | 65.9%±2.0 pts | 54.7% | – |
| Mobile homes | 16.0%±1.4 pts | 8.0% | – |
| Built 2020 or later | 8.6%±1.0 pts | 3.2% | – |
| Built 1939 or earlier | 2.3%±0.7 pts | 1.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Nassau County building?
Builders took permits for 1,060 new housing units across Nassau County in 2025 (887 single-family), 9.9 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Nassau County get to work?
78.5% of Nassau County's workers drive alone and 13.7% work from home. The average trip to work takes 30.1 minutes. The unemployment rate in 2020-2024 averaged 4.5%.
| Measure | Nassau County | Florida | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 58.1%±1.3 pts | 59.8% | – |
| Unemployment rate | 4.5%±1.1 pts | 4.8% | no clear change |
| Drove alone to work | 78.5%±2.2 pts | 70.2% | – |
| Carpooled | 5.5%±1.4 pts | 9.2% | – |
| Public transportation | 0.1%±0.2 pts | 1.2% | – |
| Walked | 1.0%±0.5 pts | 1.4% | – |
| Worked from home | 13.7%±1.9 pts | 15.7% | +8.6 pts |
| Mean travel time to work | 30.1 min±1.2 | 28.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Nassau County's census tracts?
Nassau County is divided into 24 census tracts. Among those with a reliable estimate, median household income runs from $49,875 (Tract 503.05) to $184,938 (Tract 502.01).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Nassau County compare with Florida's other counties?
| Measure | Rank |
|---|---|
| Population | 37th of 67 |
| Growth 2020-2025 | 11th of 67 |
| Residents per square mile | 36th of 67 |
| Median household income | 4th of 67 |
| Median home value | 14th of 67 |
| Median gross rent | 24th of 67 |
| Poverty rate | 57th of 67 |
| Bachelor's degree or higher | 14th of 67 |
| Median age | 21st of 67 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Nassau County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.