• county
  • FIPS 12087
  • Largest town: Key West

Monroe County, Florida

Monroe County had 80,908 residents in the Census Vintage 2024 estimate, on 983.0 square miles of land. It ranks 39th of 67 in Florida by population and 17th by land area.

Population
80,908
#39 of 67 in Florida · #720 in US
Area
983.0 sq mi
#17 of 67 in Florida · #700 in US
Density
82 / sq mi
#43 of 67 in Florida · #1,052 in US
Median household income
$85,639
#5 of 67 in Florida · #319 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Monroe County within Florida. Pin: Tallahassee.

Measure from here

Tools and pages that start from Monroe County

Monroe County population, land area and income

Monroe County had 80,908 residents in the Census Vintage 2024 estimate, on 983.0 square miles of land. It ranks 39th of 67 in Florida by population and 17th by land area. That works out to 82.3 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Florida has 154,693 residents; Monroe County is somewhat smaller.

Its SAIPE 2023 median household income of $85,639 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

80,908

3144th1st

720th of 3,144 (US)

Land area

983 sq mi

3144th1st

700th of 3,144 (US)

Density

82.3 / sq mi

3144th1st

1052nd of 3,144 (US)

Median household income

$85,639

3143rd1st

319th of 3,143 (US)

Rank within Florida (67)

Population

80,908

67th1st

39th of 67 (FL)

Land area

983 sq mi

67th1st

17th of 67 (FL)

Density

82.3 / sq mi

67th1st

43rd of 67 (FL)

Median household income

$85,639

67th1st

5th of 67 (FL)

How Monroe County's population changed since 2020

Monroe County lost 1,943 residents between the July 2020 and July 2024 estimates, a drop of 2.3%. That ranks 66th of 67 in Florida for growth. The median Florida county changed by +7.8%, and the state as a whole by +8.2%.

Since the April 2020 estimates base, Monroe County recorded 3,068 births and 3,375 deaths, a natural change of -307. Net international migration added +2,551 and net domestic migration, people moving to or from other US counties, came to -4,214. The largest single component was domestic migration, which removed 4,214 people.

82.9k202082.2k202182.0k202281.3k202380.9k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
3,068
Deaths
3,375
Net international migration
+2,551
Net domestic migration
-4,214
Change, July 2023 to July 2024
-398

Where Monroe County is

The Census internal point of Monroe County is at 25.586100, -81.022600. It sits in UTM zone 17N. The map shades Florida's 67 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Monroe County outlined. Dots are towns of 1,000+ people with residents in it.

Escambia County: +2.7%Okaloosa County: +4.0%St. Lucie County: +17.9%Okeechobee County: +6.8%DeSoto County: +7.8%Bradford County: -0.5%Bay County: +14.4%Holmes County: +1.6%Gilchrist County: +13.1%Manatee County: +14.1%Hardee County: +2.9%Lafayette County: +5.0%Flagler County: +17.9%Nassau County: +14.7%Pasco County: +16.4%Martin County: +4.4%Palm Beach County: +5.9%Alachua County: +4.3%Lee County: +12.5%Brevard County: +8.2%Polk County: +16.8%Pinellas County: +0.6%Highlands County: +8.3%Hamilton County: +4.4%Wakulla County: +9.5%Clay County: +8.1%Suwannee County: +9.2%Madison County: +2.9%Columbia County: +6.0%Jackson County: +6.1%Calhoun County: -3.1%Franklin County: +4.0%Gulf County: +11.3%Hernando County: +11.5%Washington County: +4.7%Levy County: +10.9%Liberty County: +1.9%Putnam County: +5.3%Volusia County: +8.5%Walton County: +18.2%Osceola County: +19.7%Leon County: +2.2%Union County: +2.0%Sarasota County: +9.2%Dixie County: +5.6%Charlotte County: +12.8%Indian River County: +7.3%Broward County: +4.8%Hendry County: +16.1%Sumter County: +18.7%Miami-Dade County: +5.3%Citrus County: +10.1%Seminole County: +4.9%Lake County: +15.0%Marion County: +13.6%St. Johns County: +20.9%Gadsden County: +1.7%Jefferson County: +10.5%Baker County: +4.3%Glades County: +8.7%Collier County: +10.3%Duval County: +5.7%Taylor County: +0.4%Monroe County: -2.3%Hillsborough County: +7.8%Santa Rosa County: +9.9%Orange County: +7.1%
Change 2020 to 2024
  1. < +4.0%
  2. < +5.7%
  3. < +8.7%
  4. < +13.1%
  5. ≥ +13.1%
no data

Orange pin: Monroe County internal point. Dark pin: Tallahassee.

Internal point

Decimal
25.586100, -81.022600
DMS
25°35'9.96"N 81°01'21.36"W
UTM
17N 497730.4E 2829848.5N
Geohash
dhw3s3c1u
Plus code
76QWHXPG+CX

Towns in Monroe County

3 incorporated places of 1,000+ people have residents in Monroe County, 42,292 people together, or 52% of the county. Each figure counts only the part of the town inside Monroe County; towns marked "part" extend into another county. The largest is Key West with 25,240.

  1. 01Key West25,240
  2. 02Marathon10,039
  3. 03Islamorada, Village of Islands7,013
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Monroe County

The Census 2024 county adjacency file lists 2 neighbors for Monroe County. The most populous is Miami-Dade County, FL, with 2,838,461 residents. Distances run between Census internal points in a straight line.

Distance to Tallahassee and the nearest big city

Tallahassee is 389.7 miles NNW of Monroe County's internal point in a straight line. The nearest place of 100,000 or more is Hialeah, FL (population 235,388), 48.9 miles away. The nearest place of 10,000 or more is Florida City, FL (population 13,157), 36.0 miles away.

Monroe County FIPS code

The FIPS code of Monroe County is 12087: state code 12 for Florida plus county code 087. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $85,639.

Questions people ask

What is the population of Monroe County, Florida?

The Census Vintage 2024 estimate for July 1, 2024 is 80,908. That is down 1,943 people (2.3%) from the July 2020 estimate of 82,851.

What is the FIPS code of Monroe County?

12087. The first two digits (12) are Florida; the last three (087) identify the county.

What is the largest town in Monroe County?

Key West, with 25,240 residents inside Monroe County in 2024.

Which counties border Monroe County?

2 county-equivalents border it in the Census 2024 adjacency file: Miami-Dade County, FL; Collier County, FL.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.