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Monroe County, FL
13 cities and towns and 10 ZIP codes in Monroe County, Florida.
Population
81,860
Land area
983sq mi
People per sq mi
83
ZIP codes
10
Cities and towns in Monroe County
Monroe County at a glance
- Monroe County is 80% less dense than Florida as a whole.
- The median household income is $87,738, 18% above the Florida median of $74,568.
- A typical owner-occupied home is valued at $780,600 (about 2.2 times the Florida figure) and median rent is $1,999 a month.
- Its largest cities are Key West (25,720), Key Largo (13,026) and Marathon (9,914).
Local data for Monroe County, FL
Counts from official public data
- Hospitals3
- Emergency Rooms3
- Nursing Homes2
- Schools28
- Colleges1
- Libraries5
- Banks36
- Post Offices14
- Parks136
- Grocery Stores42
- Restaurants813
- Affordable Housing5
- Home Health Agencies1
- Dialysis Centers1
- Community Health Centers6
- Mental Health & Addiction Treatment6
- Private Schools3
- Toxic Release Facilities2
- Historic Places38
Housing and community stats
Monroe County, FL, American Community Survey 2020-2024
Median household income
$87,738
Poverty rate
10.6%
Median home value
$780,600
Prices +2.1% in a year
Median rent
$1,999/mo
Homeownership
65.8%
Bachelor's or higher
38.6%
Median age
49.2
Average commute
19.5 min
Largest reported origins and ancestries: Cuban Americans (11,497), Irish Americans (9,204), German Americans (8,954).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.3%
Aug 2026, +0.3 pts in a year
Average annual pay
$62,166
47,299 jobs, 2025
Income per person
$147,760
BEA, 2024
Federal spending
$614M
FY 2026, $7,413 per person
PPP loans
$374M
7,249 loans, 47,383 jobs reported
Campaign donations
$1.8M
Itemized, 2026 cycle
How people get to work
Monroe County, FL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone64.1%
- Carpooled9.1%
- Public transit0.4%
- Walked4.2%
- Bicycle4.6%
- Taxi, ride-hailing, motorcycle or other4.4%
- Worked from home13.2%
Average one-way commute: 19.5 minutes for people who do not work from home.
Environment and hazard risk
Monroe County, FL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: coastal flooding
Storm events since 1996
730
Most often waterspout
Flood insurance policies
22,181
58.3% of homes, county
July high / Jan low
90° / 66°F
43.6 inches of rain a year
Hazards, floods and storm historyCheck a flood zone38 historic places
Health statistics
Share of adults in Monroe County, FL, CDC PLACES estimates
Obesity
25.8%
U.S. 33.3% -7.5 pts
Diabetes
13.2%
U.S. 12.1% +1.1 pts
Smoking
12.0%
U.S. 12.8% -0.8 pts
Uninsured (18-64)
13.5%
U.S. 11.1% +2.4 pts
Cities, towns and ZIP codes in Monroe County
Population shown
Frequently asked questions
- What is the largest city in Monroe County, FL?
- Key West is the largest city or town in Monroe County, with about 25,720 residents.
- How many ZIP codes are in Monroe County?
- Monroe County includes 10 ZIP Code Tabulation Areas, including 33001, 33034, 33036, 33037, 33040.
- What is the population of Monroe County, FL?
- About 81,860 people live in Monroe County, based on American Community Survey 5-year estimates.
- What counties border Monroe County?
- Monroe County borders Miami-Dade County, Collier County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023