ZIP Code Tabulation Area · Maryland

ZIP Code 21090: Linthicum, MD

ZIP Code 21090 (Linthicum, Anne Arundel County, Maryland) has an estimated 10,652 residents in 3,979 households. The median household income is $138,119, the median home value is $410,400 and the median gross rent is $2,055/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

10,652

Margin of error ±1,144

Median household income

$138,119

Margin of error ±$9,467

Median home value

$410,400

Margin of error ±$17,993

Median gross rent

$2,055/mo

Margin of error ±$172

Median age

36.8 yrs

Margin of error ±3.0 yrs

Mean travel time to work

23.5 min

Margin of error ±4.6 min

How ZIP 21090 compares with Maryland and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 2109036.8 yrsMaryland39.4 yrsUnited States38.9 yrs

Median household income

ZIP 21090$138,119Maryland$103,678United States$80,734

Per capita income

ZIP 21090$55,969Maryland$52,979United States$44,673

Poverty rate

ZIP 210903.5%Maryland9.4%United States12.5%

Unemployment rate

ZIP 210902.6%Maryland4.9%United States5.2%

Bachelor's degree or higher

ZIP 2109042.8%Maryland43.4%United States35.7%

Median home value

ZIP 21090$410,400Maryland$419,900United States$332,700

Median gross rent

ZIP 21090$2,055/moMaryland$1,705/moUnited States$1,413/mo

Owner-occupied homes

ZIP 2109083.2%Maryland67.6%United States65.2%

Mean travel time to work

ZIP 2109023.5 minMaryland31.1 minUnited States26.4 min

Worked from home

ZIP 2109018.0%Maryland19.3%United States15.1%

All figures for ZIP 21090

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 21090 — ACS 2020–2024 5-year estimates
MeasureZIP 21090Margin of errorMarylandUnited States
Total population10,652±1,1446,206,011334,922,499
Median age36.8 yrs±3.0 yrs39.4 yrs38.9 yrs
Households3,979±3452,362,928129,227,496
Median household income$138,119±$9,467$103,678$80,734
Per capita income$55,969±$3,455$52,979$44,673
Poverty rate3.5%±2.0 pts9.4%12.5%
Unemployment rate2.6%±1.6 pts4.9%5.2%
Bachelor's degree or higher42.8%±4.8 pts43.4%35.7%
Median home value$410,400±$17,993$419,900$332,700
Median gross rent$2,055/mo±$172$1,705/mo$1,413/mo
Owner-occupied homes83.2%±3.4 pts67.6%65.2%
Mean travel time to work23.5 min±4.6 min31.1 min26.4 min
Worked from home18.0%±3.2 pts19.3%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 21090
GroupZIP 21090MarylandUnited States
White alone, not Hispanic or Latino75.1%46.6%57.4%
Black or African American alone, not Hispanic or Latino9.0%28.9%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.1%0.5%
Asian alone, not Hispanic or Latino4.3%6.5%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.2%0.7%0.6%
Two or more races, not Hispanic or Latino5.6%4.6%4.3%
Hispanic or Latino (of any race)5.7%12.5%19.3%

Where ZIP 21090 is

State
Maryland
Main county
Anne Arundel County
Largest overlapping place
Linthicum (78% of the ZIP's land area)
Land area
6.64 sq mi· about 1,604 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Anne Arundel County

20776 Anne Arundel County, MD20778 Anne Arundel County, MD20779 Anne Arundel County, MD21012 Arnold, MD21032 Crownsville, MD21035 Anne Arundel County, MD21037 Mayo, MD21054 Odenton, MD21056 Anne Arundel County, MD21060 Glen Burnie, MD21061 Glen Burnie, MD21076 Severn, MD21077 Severn, MD21108 Severna Park, MD21113 Odenton, MD21114 Crofton, MD21122 Lake Shore, MD21140 Riva, MD21144 Severn, MD21146 Severna Park, MD21225 Brooklyn Park, MD21401 Parole, MD21402 Naval Academy, MD21403 Annapolis Neck, MD

See every ZIP code in Maryland, or compare ZIP 21090 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.