What kinds of homes are in Stock Island, FL?

Name: Types of homes in Stock Island, FL, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Stock Island, FL has 2,049 (±298) homes (2020–2024 American Community Survey).

That is about 2,448 homes per square mile of land.

24.9% are detached single-family houses.

16.8% are in buildings of two to four units.

32.9% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 2,049 (±298)
Detached houses: 24.9%
2–4 unit buildings: 16.8%
5+ unit buildings: 32.9%

Homes in Stock Island by building size

Housing units by units in structure, 2020–2024
Building type	Stock Island	Monroe County	Florida	United States
Single-family, detached	24.9% (±9.2 points)	58.3%	54.7%	61.3%
Single-family, attached (townhouse, rowhouse)	6.7% (±7.0 points)	6.7%	6.7%	6.2%
2 units	8.6% (±6.0 points)	5.5%	2.0%	3.4%
3 or 4 units	8.2% (±7.2 points)	4.8%	3.9%	4.3%
5 to 9 units	2.4% (±2.6 points)	3.9%	4.7%	4.5%
10 to 19 units	9.5% (±7.4 points)	3.4%	5.4%	4.3%
20 or more units	21.0% (±9.7 points)	8.6%	14.4%	10.3%
Mobile home	18.6% (±6.7 points)	8.3%	8.0%	5.6%
Boat, RV, van, etc.	0.0% (±2.5 points)	0.5%	0.2%	0.1%

In Stock Island, the share of homes in buildings of five or more units is higher than in Monroe County (15.9%).

It is not measurably different from Florida (24.5%).

It is higher than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Stock Island

Nearest places with a published estimate, compared with Stock Island
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Stock Island	—	32.9% (±12.5 points)	—
Key West	2.2 mi	24.4% (±3.1 points)	Not measurably different
Big Coppitt Key	5.6 mi	3.2% (±4.5 points)	Lower
Cudjoe Key	17 mi	1.2% (±4.8 points)	Lower
Big Pine Key	25 mi	5.7% (±5.3 points)	Lower
Marathon	46 mi	20.0% (±3.8 points)	Not measurably different
Key Colony Beach	46 mi	19.5% (±6.4 points)	Not measurably different
Layton	61 mi	3.2% (±34.1 points)	Not measurably different
Islamorada	80 mi	19.2% (±4.4 points)	Lower

Nearby places with a measurably lower figure: Big Coppitt Key, FL (3.2%), Cudjoe Key, FL (1.2%), Big Pine Key, FL (5.7%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Monroe County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Stock Island	32.9% (±12.5 points)
2	Key West	24.4% (±3.1 points)
3	Marathon	20.0% (±3.8 points)
4	Key Colony Beach	19.5% (±6.4 points)
5	Islamorada	19.2% (±4.4 points)
6	North Key Largo	19.0% (±8.2 points)
7	Key Largo	10.7% (±2.9 points)

Showing 7 of 12 places in Monroe County, ranked from highest to lowest.

Stock Island is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Stock Island

How many homes are in Stock Island?

Stock Island, FL has an estimated 2,049 (±298) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Stock Island houses or apartments?

24.9% are detached houses and 6.7% attached houses, while 49.7% are in buildings of two or more units.

How many two-family and small multifamily homes are in Stock Island?

16.8% of homes in Stock Island are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Stock Island CDP, Florida

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Stock Island CDP, Florida (place:68800, in state:12).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.