What kinds of homes are in Ilchester, MD?

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

Ilchester, MD has 10,257 (±415) homes (2020–2024 American Community Survey).

That is about 954 homes per square mile of land.

45.7% are detached single-family houses.

3.1% are in buildings of two to four units.

21.5% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 10,257 (±415)
Detached houses: 45.7%
2–4 unit buildings: 3.1%
5+ unit buildings: 21.5%

Homes in Ilchester by building size

Housing units by units in structure, 2020–2024
Building type	Ilchester	Howard County	Maryland	United States
Single-family, detached	45.7% (±2.9 points)	50.1%	51.2%	61.3%
Single-family, attached (townhouse, rowhouse)	23.7% (±2.6 points)	22.4%	21.3%	6.2%
2 units	0.9% (±0.7 points)	0.5%	1.5%	3.4%
3 or 4 units	2.2% (±0.9 points)	1.3%	2.1%	4.3%
5 to 9 units	3.8% (±1.5 points)	5.8%	5.2%	4.5%
10 to 19 units	10.9% (±2.1 points)	9.8%	7.3%	4.3%
20 or more units	6.8% (±1.6 points)	9.3%	10.2%	10.3%
Mobile home	5.7% (±1.5 points)	0.7%	1.3%	5.6%
Boat, RV, van, etc.	0.2% (±0.3 points)	0.2%	0.0%	0.1%

In Ilchester, the share of homes in buildings of five or more units is lower than in Howard County (24.9%).

It is not measurably different from Maryland (22.7%).

It is not measurably different from the national figure (19.1%).

Homes in buildings of 5 or more units in places near Ilchester

Nearest places with a published estimate, compared with Ilchester
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Ilchester	—	21.5% (±3.0 points)	—
Elkridge	1.8 mi	29.5% (±4.1 points)	Higher
Catonsville	3.5 mi	25.8% (±3.4 points)	Not measurably different
Arbutus	4.2 mi	10.9% (±3.5 points)	Lower
Jessup	4.7 mi	31.0% (±13.7 points)	Not measurably different
Linthicum	5.2 mi	13.7% (±3.7 points)	Lower
Columbia	5.3 mi	33.0% (±2.1 points)	Higher
Lansdowne	5.4 mi	17.0% (±6.5 points)	Not measurably different
Ellicott City	5.7 mi	26.1% (±2.9 points)	Higher

Nearby places with a measurably lower figure: Arbutus, MD (10.9%), Linthicum, MD (13.7%).

Nearby places with a measurably higher figure: Elkridge, MD (29.5%), Columbia, MD (33.0%), Ellicott City, MD (26.1%).

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 Howard County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Columbia	33.0% (±2.1 points)
2	Elkridge	29.5% (±4.1 points)
3	North Laurel	29.1% (±6.1 points)
4	Savage	27.0% (±10.1 points)
5	Ellicott City	26.1% (±2.9 points)
6	Ilchester	21.5% (±3.0 points)
7	Fulton	19.1% (±7.8 points)
8	Scaggsville	3.2% (±1.3 points)

Ilchester 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 Ilchester

How many homes are in Ilchester?

Ilchester, MD has an estimated 10,257 (±415) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Ilchester houses or apartments?

45.7% are detached houses and 23.7% attached houses, while 24.6% are in buildings of two or more units.

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

3.1% of homes in Ilchester 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 — Ilchester CDP, Maryland

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 Ilchester CDP, Maryland (place:41475, in state:24).

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.