21045 ZIP Code
Columbia, Maryland
December 15, 2025
| ZIP Code: | 21045 |
| City/Town: | Columbia |
| County: | Howard |
| State: | Maryland |
| ZIP Type: | Standard |
| Population: | 40,980 |
| Median Household Income: | $115,134 |
| Per Capita Income: | $61,314 |
| Total Housing Units: | 15,838 |
| Median Home Value: | $420,400 |
| Land Area: | 9.7 sq miles
25.1 sq km |
| Water Area: | 0.1 sq miles
0.2 sq km |
| Coordinates: | 39.2060, -76.8282 |
Population Information (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 40,980 | -- | -- |
| Male: | 19,910 | 48.6% | 49.6% |
| Female: | 21,070 | 51.4% | 50.4% |
| Median Age: | 38.0 yrs | -- | 38.5 yrs |
| Under 5 years: | 2,683 | 6.5% | 5.7% |
| 5 to 9 years: | 2,361 | 5.8% | 6.0% |
| 10 to 14 years: | 2,749 | 6.7% | 6.5% |
| 15 to 19 years: | 2,565 | 6.3% | 6.6% |
| 20 to 24 years: | 2,173 | 5.3% | 6.7% |
| 25 to 34 years: | 5,603 | 13.7% | 13.7% |
| 35 to 44 years: | 6,161 | 15.0% | 12.9% |
| 45 to 54 years: | 4,579 | 11.2% | 12.4% |
| 55 to 59 years: | 2,242 | 5.5% | 6.5% |
| 60 to 64 years: | 2,670 | 6.5% | 6.4% |
| 65 to 74 years: | 3,904 | 9.5% | 9.7% |
| 75 to 84 years: | 2,301 | 5.6% | 4.8% |
| 85 years and over: | 989 | 2.4% | 2.0% |
Housing Information (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $420,400 | -- | $281,900 |
| Median rooms: | 6.6 | -- | 5.5 |
| Median rent: | $1,602 / mo. | -- | $1,268 / mo. |
| Total housing units: | 15,838 | -- | -- |
| Occupied housing units: | 15,364 | 97.0% | 38.0% |
| Vacant housing units: | 474 | 3.0% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 10,764 | 70.1% | 64.8% |
| Renter-occupied: | 4,600 | 29.9% | 35.2% |
Educational Attainment (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 28,449 | -- | -- |
| Less than 9th grade: | 1,018 | 3.6% | 4.7% |
| 9th to 12th grade, no diploma: | 759 | 2.7% | 6.1% |
| High school graduate: | 4,034 | 14.2% | 26.4% |
| Some college, no degree: | 4,235 | 14.9% | 19.7% |
| Associate degree: | 1,850 | 6.5% | 8.7% |
| Bachelor's degree: | 7,560 | 26.6% | 20.9% |
| Graduate or professional degree: | 8,993 | 31.6% | 13.7% |
| Percent high school graduate or higher: | -- | 93.8% | 89.1% |
| Percent bachelor's degree or higher: | -- | 58.2% | 34.3% |
Income Information (21045 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $115,134 / yr. | $75,149 / yr. |
| Mean household income: | $134,718 / yr. | $105,833 / yr. |
| Median family income: | $141,097 / yr. | $92,646 / yr. |
| Per capita income: | $61,314 / yr. | $41,261 / yr. |
Employment (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 22,809 | -- | 63.5% |
| Employed: | 21,614 | 95.5% | 96.4% |
| Unemployed: | 1,024 | 4.5% | 5.3% |
| Not in labor force: | 9,915 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 15,597 | 72.2% | 79.7% |
| Government workers: | 4,864 | 22.5% | 14.2% |
| Self-employed: | 1,149 | 5.3% | 5.9% |
| Unpaid family workers: | 4 | 0.0% | 0.1% |
Race & Ethnicity (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 19,243 | 47.0% | 61.6% |
| Black or African American: | 12,778 | 31.2% | 12.4% |
| American Indian/Alaska Native: | 145 | 0.4% | 1.1% |
| Asian: | 4,569 | 11.1% | 6.0% |
| Native Hawaiian/Pacific Islander: | 0 | 0.0% | 0.2% |
| Some other race: | 1,425 | 3.5% | 8.4% |
| Two or more races: | 2,820 | 6.9% | 10.2% |
| Hispanic or Latino (any race): | 2,549 | 6.2% | 18.7% |
| Mexican: | 4,450 | 10.9% | 11.2% |
| Puerto Rican: | 880 | 2.1% | 1.8% |
| Cuban: | 917 | 2.2% | 0.7% |
| Other Hispanic or Latino: | 192 | 0.5% | 5.0% |
| Not Hispanic or Latino: | 2,461 | 6.0% | 81.1% |
Income Distribution (21045 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 416 | 2.7% | 4.9% |
| $10,000 to $14,999: | 366 | 2.4% | 3.8% |
| $15,000 to $24,999: | 757 | 4.9% | 7.0% |
| $25,000 to $34,999: | 597 | 3.9% | 7.4% |
| $35,000 to $49,999: | 784 | 5.1% | 10.7% |
| $50,000 to $74,999: | 1,632 | 10.6% | 16.1% |
| $75,000 to $99,999: | 1,852 | 12.1% | 12.8% |
| $100,000 to $149,999: | 3,311 | 21.6% | 17.1% |
| $150,000 to $199,999: | 2,458 | 16.0% | 8.8% |
| $200,000 or more: | 3,191 | 20.8% | 11.4% |
Commute to Work (21045 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 14,808 | 68.5% | 67.8% |
| Carpooled: | 1,265 | 5.9% | 8.7% |
| Public transportation: | 784 | 3.6% | 4.2% |
| Walked: | 228 | 1.1% | 2.5% |
| Other means: | 181 | 0.8% | 0.9% |
| Worked from home: | 3,849 | 17.8% | 13.8% |
| Mean travel time to work: | 28.5 min | -- | 26.7 min |
Industry (21045 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 94 | 0.4% | 1.6% |
| Construction: | 1,100 | 5.1% | 6.9% |
| Manufacturing: | 854 | 4.0% | 10.0% |
| Wholesale trade: | 264 | 1.2% | 2.4% |
| Retail trade: | 1,684 | 7.8% | 11.0% |
| Transportation, warehousing, utilities: | 841 | 3.9% | 5.8% |
| Information: | 508 | 2.4% | 1.9% |
| Finance, insurance, real estate: | 1,482 | 6.9% | 6.7% |
| Professional, scientific, management: | 3,882 | 18.0% | 12.1% |
| Education, health care, social services: | 6,114 | 28.3% | 23.3% |
| Arts, entertainment, food services: | 1,887 | 8.7% | 9.0% |
| Other services: | 916 | 4.2% | 4.7% |
| Public administration: | 1,988 | 9.2% | 4.7% |
Poverty Status (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 8.2% | 8.8% |
| All people below poverty level: | -- | -- | -- |
| Under 18 years: | -- | -- | 16.3% |
| 18 to 64 years: | -- | -- | 11.0% |
| 65 years and over: | -- | -- | 10.3% |
Health Insurance (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 38,133 | 93.1% | 91.3% |
| Private health insurance: | 30,159 | 73.6% | 67.6% |
| Public health coverage: | 13,769 | 33.6% | 35.9% |
| Without health insurance: | 2,623 | 6.4% | 8.7% |
Benefits & Assistance (21045 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 12,376 | 80.6% | 77.4% |
| Social Security income: | 4,109 | 26.7% | 31.0% |
| Retirement income: | 3,731 | 24.3% | 21.8% |
| Supplemental Security Income (SSI): | 961 | 6.3% | 4.5% |
| Cash public assistance income: | 365 | 2.4% | 1.8% |
| SNAP (food stamps) benefits: | 1,440 | 9.4% | 11.4% |
Housing Types (21045 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 7,162 | 45.2% | 61.4% |
| 1-unit, attached: | 4,438 | 28.0% | 6.1% |
| 2 units: | 63 | 0.4% | 3.4% |
| 3 or 4 units: | 357 | 2.3% | 4.3% |
| 5 to 9 units: | 835 | 5.3% | 4.6% |
| 10 to 19 units: | 1,807 | 11.4% | 4.3% |
| 20 or more units: | 1,140 | 7.2% | 9.9% |
| Mobile home: | 14 | 0.1% | 5.8% |
| Boat, RV, van, etc.: | 22 | 0.1% | 0.1% |
Year Structure Built (21045 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 0 | 0.0% | 0.6% |
| Built 2010 to 2019: | 219 | 1.4% | 8.2% |
| Built 2000 to 2009: | 788 | 5.0% | 13.5% |
| Built 1990 to 1999: | 2,281 | 14.4% | 13.2% |
| Built 1980 to 1989: | 3,256 | 20.6% | 13.2% |
| Built 1970 to 1979: | 7,814 | 49.3% | 14.6% |
| Built 1960 to 1969: | 958 | 6.0% | 10.2% |
| Built 1950 to 1959: | 225 | 1.4% | 9.9% |
| Built 1940 to 1949: | 26 | 0.2% | 4.6% |
| Built 1939 or earlier: | 271 | 1.7% | 12.0% |
Bedrooms (21045 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 316 | 2.0% | 2.4% |
| 1 bedroom: | 1,369 | 8.6% | 3.0% |
| 2 bedrooms: | 2,508 | 15.8% | 9.1% |
| 3 bedrooms: | 5,823 | 36.8% | 15.9% |
| 4 bedrooms: | 4,967 | 31.4% | 18.8% |
| 5 or more bedrooms: | 855 | 5.4% | 17.6% |
Heating Fuel (21045 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 7,218 | 47.0% | 47.1% |
| Bottled, tank, or LP gas: | 102 | 0.7% | 4.9% |
| Electricity: | 7,760 | 50.5% | 40.2% |
| Fuel oil, kerosene, etc.: | 118 | 0.8% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 25 | 0.2% | 1.5% |
| Solar energy: | 27 | 0.2% | 0.1% |
| Other fuel: | 14 | 0.1% | 0.5% |
| No fuel used: | 100 | 0.7% | 0.2% |
Vehicles Available (21045 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 1,096 | 7.1% | 8.3% |
| 1 vehicle available: | 4,971 | 32.4% | 32.6% |
| 2 vehicles available: | 6,303 | 41.0% | 37.0% |
| 3 or more vehicles available: | 2,994 | 19.5% | 22.1% |
Home Value Distribution (21045 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 131 | 1.2% | 5.7% |
| $50,000 to $99,999: | 0 | 0.0% | 7.8% |
| $100,000 to $149,999: | 105 | 1.0% | 9.2% |
| $150,000 to $199,999: | 420 | 3.9% | 10.8% |
| $200,000 to $299,999: | 880 | 8.2% | 19.9% |
| $300,000 to $499,999: | 6,250 | 58.1% | 24.1% |
| $500,000 to $999,999: | 2,968 | 27.6% | 17.0% |
| $1,000,000 or more: | 10 | 0.1% | 5.6% |
Housing Costs (21045 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $2,425 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $830 / mo. | $584 / mo. |
| Median gross rent: | $1,602 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.63 | 2.53 |
| Average household size (renter-occupied): | 2.72 | 2.38 |
Households (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 15,364 | -- | -- |
| Married-couple households: | 7,666 | 49.9% | 47.5% |
| Cohabiting couple households: | 3,102 | 20.2% | 7.0% |
| Male householder, no spouse: | 2,227 | 14.5% | 5.4% |
| Female householder, no spouse: | 4,690 | 30.5% | 12.7% |
| Householder living alone: | 4,827 | 31.4% | 28.6% |
| 65 years and over living alone: | 4,932 | 32.1% | 11.8% |
| Average household size: | 2.66 | -- | 2.53 |
| Average family size: | 3.21 | -- | -- |
Marital Status (21045 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 15,708 | -- | -- |
| Never married: | 5,697 | 36.3% | 37.0% |
| Now married: | 8,424 | 53.6% | 49.5% |
| Separated: | 372 | 2.4% | 1.5% |
| Widowed: | 1,048 | 6.7% | 2.6% |
| Divorced: | 5,538 | 35.3% | 9.3% |
School Enrollment (21045 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 10,580 | -- | -- |
| Nursery school, preschool: | 712 | 6.7% | 5.8% |
| Kindergarten: | 402 | 3.8% | 5.0% |
| Elementary school (grades 1-8): | 3,878 | 36.7% | 40.5% |
| High school (grades 9-12): | 2,195 | 20.7% | 21.4% |
| College or graduate school: | 3,393 | 32.1% | 27.3% |
Veterans & Disability (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 31,480 | -- | -- |
| Veterans: | 2,355 | 7.5% | 6.3% |
| Civilian noninstitutionalized population: | 40,756 | -- | -- |
| With a disability: | 5,460 | 13.4% | 13.4% |
| Under 18 with disability: | 356 | 6.5% | 5.8% |
| 18 to 64 with disability: | 2,422 | 44.4% | 10.4% |
| 65 and over with disability: | 2,682 | 49.1% | 33.4% |
Mobility (Residence 1 Year Ago) (21045 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 35,177 | 85.8% | 86.9% |
| Different house: | 5,119 | 12.5% | 13.1% |
| Same county: | 2,241 | 43.8% | 7.0% |
| Different county: | 2,595 | 50.7% | 3.2% |
| Different state: | 1,530 | 29.9% | 2.5% |
| Abroad: | 283 | 5.5% | 0.4% |
Place of Birth (21045 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 31,681 | 77.3% | 86.2% |
| Foreign born: | 645 | 1.6% | 13.9% |
| Naturalized citizen: | 9,299 | 1441.7% | 52.7% |
| Not a citizen: | 9,299 | 1441.7% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 9,299 | 1441.7% | 10.5% |
| Asia: | 803 | 124.5% | 31.3% |
| Africa: | 1,453 | 225.3% | 5.5% |
| Oceania: | 0 | 0.0% | 0.5% |
| Latin America: | 3,094 | 479.7% | 50.0% |
| Northern America: | 161 | 25.0% | 2.2% |
Language Spoken at Home (21045 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 38,297 | -- | -- |
| English only: | 29,040 | 75.8% | 78.3% |
| Language other than English: | 9,257 | 24.2% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 3,106 | 8.1% | 13.3% |
| Other Indo-European languages: | 2,811 | 7.3% | 3.5% |
| Asian/Pacific Island languages: | 2,175 | 5.7% | 3.5% |
| Other languages: | 1,165 | 3.0% | 1.0% |
Computers & Internet (21045 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 15,364 | 100.0% | 93.1% |
| Households with broadband internet: | 14,776 | 96.2% | 89.4% |
Columbia, MD21045