Nassau County, Florida

Nassau County: county in Florida, United States

About

Nassau County is a county located in the U.S. state of Florida. As of the 2010 census, the population was 73,314 and a population density of 39 people per km². After 10 years in 2020 county had an estimated population of 91,113 inhabitants. Its county seat is Fernandina Beach. The county was created 201 years ago in 1824.

Nassau County locator map
Location of Nassau County on Florida map.

County Snapshot

Nassau County at a glance

Nassau County currently has 4 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

4

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Nassau County

Population 91,113 (2020)
Country United States of America
State Florida (United States)
Different from Nassau County
Area 1880 km2
Water as percent of area 10.6%
Land as percent of area 89.4%
Latitude & Longitude 30.6106,-81.7714
Named for Duchy of Nassau
Capital Fernandina Beach
Establishment December 29, 1824
Time Zone America/New_York
Local time 04:17:07 (19th April 2026)
Density 48 Pop. per km² as of 2020
Population growth 19.54% (2010-2020)
Weather 88℉ Partly Sunny 7-days weather
Fernandina Beach  FL  Courthouse  Nassau County  08-09-2010 '7' image
Fernandina Beach FL Courthouse Nassau County 08-09-2010 '7' image

Geography

Nassau County is located at 30°36'38"N 81°46'17"W (30.6105800, -81.7714200). It has 3 neighbors: Duval County, Camden County and Charlton County.

Nassau County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Nassau County is Fernandina Beach with a population of 13,290. Other cities include, Hilliard population 3,265 and Callahan population 1,388. See all Nassau County cities & populated places.

Nassau County Populated Places

Cities, towns, neighborhoods & other populated places in Nassau County.

City Name Population Title
Fernandina Beach 13,290 City in Nassau County, Florida, United States
Yulee 11,491 Census designated place
Hilliard 3,265 Human settlement in Nassau County, Florida, United States of America
Callahan 1,388 Town in Florida, United States

Weather

88°F
Partly Sunny
2 to 12 mph W Sunday

Partly sunny. High near 88, with temperatures falling to around 85 in the afternoon. West wind 2 to 12 mph, with gusts as high as 20 mph.

7-Day Forecast

Official website of Nassau County

Official Website
  • Fernandina Beach

Demographics

The population of Nassau County increased by 19.54% in 10 years.

Year Population % Change Method
2010 73,314 - census
2011 74,148 1.12% estimation process
2012 74,519 0.5% estimation process
2013 75,384 1.15% estimation process
2014 76,250 1.14% estimation process
2015 77,951 2.18% estimation process
2016 80,055 2.63% estimation process
2017 82,925 3.46% estimation process
2018 85,936 3.5% estimation process
2019 88,625 3.03% estimation process
2020 91,113 2.73% estimation process
Comitatul Nassau, Comte de Nassau, Comté de Nassau, Condado de Nassau, Condado han Nassau, Contea di Nassau, Hrabstwo Nassau, Nasau srjan, Naso, Nassau, Nassau Comitatus, Nassau Coonty, Nassau Kun, Nassau Kūn, Nassau konderria, Nassau maakond, Nassau megye, Nasso, Okrug Naso, Quan Nassau, Quận Nassau, na sao xian, nasa'u ka'unti, naso gun, nasso jun, shhrstan nasaw flwryda, Насо, Нассау, Нассо, Округ Насо, Նասաու շրջան, شهرستان ناساو، فلوریدا, مقاطعة ناسو, ناساؤ کاؤنٹی، فلوریڈا, نساؤ کاؤنٹی، فلوریڈا, নাসাউ কাউন্টি, ナッソー郡, 拿騷縣, 나소 군

People born in Nassau County (1)

Van C. Swearingen was born in Nassau County

Other places with the same name (1)

Florida Other Counties (more counties)

County Name Population Title
Miami-Dade County 2,707,303 County in Florida, United States
Broward County 1,958,105 County in Florida, United States
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Hillsborough County 1,497,957 County in New Hampshire, United States
Orange County 1,404,396 County in Florida, United States
Pinellas County 976,802 County in Florida, United States of America
Duval County 966,728 County in Florida, United States of America
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Lee County 790,767 County in Florida, United States
Polk County 744,552 County in Minnesota, United States
Brevard County 608,459 County in Florida, United States
Pasco County 570,412 County in Florida, United States of America
Volusia County 561,497 County in Florida, United States of America
Seminole County 474,171 County in Florida, United States of America
Miami 471,525 The most populous city in Florida, Miami is a major center for tourism, finance, and culture.
Sarasota County 443,465 County in Florida, United States of America