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Ilchester, MD
Census-designated place in Howard County, Maryland. ZIP codes: 21043, 21075.
Population
28,364
Land area
10.8sq mi
People per sq mi
2,637
ZIP codes
2
Ilchester and its ZIP codes
Ilchester at a glance
- Ilchester is about 4.1 times as dense as Maryland as a whole.
- It is the 48th most populous of 527 cities and towns in Maryland.
- Households here earn a median of $152,103 a year, 47% more than the Maryland figure of $103,678.
- A typical owner-occupied home is valued at $532,400 (27% above Maryland) and median rent is $2,115 a month.
Local data for Ilchester, MD
Counts from official public data
Housing and community stats
Ilchester, MD, American Community Survey 2020-2024
Median household income
$152,103
Poverty rate
5.1%
Median home value
$532,400
Median rent
$2,115/mo
Homeownership
76.4%
Bachelor's or higher
62.9%
Median age
36.8
Average commute
27.6 min
Largest reported origins and ancestries: German Americans (3,856), Irish Americans (2,798), Italian Americans (1,979).
Economy and federal money
Jobs, pay, income and spending are for Howard County. PPP loans are for Ilchester.
Unemployment rate
3.4%
Aug 2026, -0.6 pts in a year
Average annual pay
$90,296
173,088 jobs, 2025
Income per person
$99,767
BEA, 2024
Federal spending
$8.73B
FY 2026, $26,272 per person
PPP loans
$143M
1,155 loans, 13,915 jobs reported
How people get to work
Ilchester, MD, workers 16 and older. American Community Survey 5-year estimates
- Drove alone62.9%
- Carpooled5.2%
- Public transit2.0%
- Walked0.9%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other1.2%
- Worked from home27.7%
Average one-way commute: 27.6 minutes for people who do not work from home.
Environment and hazard risk
Ilchester, MD, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: winter weather
Storm events since 1996
911
Countywide, mostly thunderstorm wind
Flood insurance policies
816
0.8% of homes, county
July high / Jan low
89° / 25°F
45.0 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Ilchester, MD, CDC PLACES estimates
Obesity
29.7%
U.S. 33.3% -3.6 pts
Diabetes
8.9%
U.S. 12.1% -3.2 pts
Smoking
7.7%
U.S. 12.8% -5.1 pts
Uninsured (18-64)
6.0%
U.S. 11.1% -5.1 pts
ZIP codes in Ilchester
2 in or overlapping Ilchester. Population shown
Cities near Ilchester
| Name | Distance | Land area (sq mi) |
|---|---|---|
| ElkridgeCensus-designated place | 2 mi | 8.4 |
| CatonsvilleCensus-designated place | 3.5 mi | 14 |
| ArbutusCensus-designated place | 4.5 mi | 6.5 |
| JessupCensus-designated place | 4.6 mi | 6 |
| SavageCensus-designated place | 5.3 mi | 2.7 |
| ColumbiaCensus-designated place | 5.3 mi | 31.9 |
| Ellicott CityCensus-designated place | 5.4 mi | 30 |
| LinthicumCensus-designated place | 5.7 mi | 5.5 |
| LansdowneCensus-designated place | 6 mi | 2.3 |
| WoodlawnCensus-designated place | 6.4 mi | 9.5 |
| SevernCensus-designated place | 6.5 mi | 18.3 |
| North LaurelCensus-designated place | 6.9 mi | 6.5 |
| Baltimore HighlandsCensus-designated place | 7.4 mi | 1.7 |
| FerndaleCensus-designated place | 7.6 mi | 4 |
| Fort MeadeCensus-designated place | 7.7 mi | 8.1 |
| Brooklyn ParkCensus-designated place | 8 mi | 4.2 |
Frequently asked questions
- What county is Ilchester, MD in?
- Ilchester is in Howard County, Maryland.
- What ZIP codes are in Ilchester, MD?
- ZIP codes in or overlapping Ilchester include 21043, 21075.
- What is the population of Ilchester, MD?
- About 28,364 people live in Ilchester, based on American Community Survey 5-year estimates.
- What cities are near Ilchester?
- Nearby places include Elkridge (2 mi), Catonsville (3.5 mi), Arbutus (4.5 mi), Jessup (4.6 mi), Savage (5.3 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023