Key West vs Marathon

A side-by-side comparison of Key West and Marathon: population, income, housing, and more.

Key West and Marathon are places in Florida. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Key West has the higher population (25,824 vs 9,831 in Marathon). Marathon has the higher median household income ($80,556 vs $78,532 in Key West). Key West has the higher median home value ($816,300 vs $683,700 in Marathon).

Population, income & housing

	Key West	Marathon
Population	25,824	9,831
Median age	46.5 yrs	45.6 yrs
Median household income	$78,532	$80,556
Median home value	$816,300	$683,700
Median gross rent	$2,075	$1,592
Housing units	14,414	6,442
Homeownership rate	47.4%	57.8%
Bachelor's degree or higher	41.2%	33.0%
Unemployment rate	2.0%	5.4%

Trends (ACS 5-year, 2019–2023)

	Key West	Marathon
Population	24,843 → 25,824 (+3.9%)	8,702 → 9,831 (+13.0%)
Median household income	$69,630 → $78,532 (+12.8%)	$56,365 → $80,556 (+42.9%)
Median home value	$611,400 → $816,300 (+33.5%)	$425,200 → $683,700 (+60.8%)
Median gross rent	$1,816 → $2,075 (+14.3%)	$1,319 → $1,592 (+20.7%)

Key West

Population

24,84325,824

Median household income

$69,630$78,532

Median home value

$611,400$816,300

Median gross rent

$1,816$2,075

Marathon

Population

8,7029,831

Median household income

$56,365$80,556

Median home value

$425,200$683,700

Median gross rent

$1,319$1,592

Age & race/ethnicity

Age distribution (share)

	Key West	Marathon
Under 5	4.5%	5.4%
5 to 17	10.3%	14.7%
18 to 24	4.5%	5.1%
25 to 34	13.9%	10.3%
35 to 44	14.3%	13.5%
45 to 54	13.5%	16.1%
55 to 64	17.6%	14.0%
65 to 74	12.9%	12.4%
75 and over	8.4%	8.4%

Race & ethnicity (share)

	Key West	Marathon
White (non-Hispanic)	59.1%	59.3%
Black or African American	11.0%	3.9%
American Indian & Alaska Native	0.0%	0.0%
Asian	2.2%	0.4%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	1.3%	0.1%
Two or more races	3.1%	3.2%
Hispanic or Latino	23.3%	33.1%

Educational attainment (age 25+)

Share of adults 25+

	Key West	Marathon
No high school diploma	6.7%	9.7%
High school graduate	26.3%	29.6%
Some college or associate's	25.7%	27.7%
Bachelor's degree	24.3%	19.4%
Graduate or professional degree	16.9%	13.5%

Commute to work

How workers get to work (share)

	Key West	Marathon
Drove alone	57.4%	62.0%
Carpooled	7.0%	10.6%
Public transit	0.1%	0.0%
Walked	4.9%	11.8%
Bicycle	12.6%	1.0%
Worked from home	10.3%	10.9%
Other means	7.7%	3.6%

Housing

Units in structure (share)

	Key West	Marathon
1-unit, detached	40.6%	49.5%
1-unit, attached	11.6%	8.3%
2 to 4 units	16.8%	8.1%
5 to 19 units	11.4%	11.4%
20 or more units	16.7%	9.8%
Mobile home & other	3.0%	12.8%

Poverty & households

	Key West	Marathon
Poverty rate	11.1%	11.4%
Average household size	2.21	2.46
Mean commute (minutes)	14	13
Median year structure built	1967	1980