21042 ZIP Code
Ellicott City, Maryland
December 16, 2025
| ZIP Code: | 21042 |
| City/Town: | Ellicott City |
| County: | Howard |
| State: | Maryland |
| ZIP Type: | Standard |
| Population: | 42,528 |
| Median Household Income: | $178,207 |
| Per Capita Income: | $86,548 |
| Total Housing Units: | 15,153 |
| Median Home Value: | $650,900 |
| Land Area: | 37.0 sq miles
95.8 sq km |
| Water Area: | 0.2 sq miles
0.4 sq km |
| Coordinates: | 39.2772, -76.8946 |
Population Information (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 42,528 | -- | -- |
| Male: | 21,496 | 50.5% | 49.6% |
| Female: | 21,032 | 49.5% | 50.4% |
| Median Age: | 44.6 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,830 | 4.3% | 5.7% |
| 5 to 9 years: | 2,351 | 5.5% | 6.0% |
| 10 to 14 years: | 4,242 | 10.0% | 6.5% |
| 15 to 19 years: | 3,318 | 7.8% | 6.6% |
| 20 to 24 years: | 1,681 | 4.0% | 6.7% |
| 25 to 34 years: | 2,673 | 6.3% | 13.7% |
| 35 to 44 years: | 5,451 | 12.8% | 12.9% |
| 45 to 54 years: | 6,750 | 15.9% | 12.4% |
| 55 to 59 years: | 3,665 | 8.6% | 6.5% |
| 60 to 64 years: | 2,574 | 6.1% | 6.4% |
| 65 to 74 years: | 4,658 | 11.0% | 9.7% |
| 75 to 84 years: | 2,347 | 5.5% | 4.8% |
| 85 years and over: | 988 | 2.3% | 2.0% |
Housing Information (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $650,900 | -- | $281,900 |
| Median rooms: | 8.3 | -- | 5.5 |
| Median rent: | $2,197 / mo. | -- | $1,268 / mo. |
| Total housing units: | 15,153 | -- | -- |
| Occupied housing units: | 14,913 | 98.4% | 38.0% |
| Vacant housing units: | 240 | 1.6% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 12,585 | 84.4% | 64.8% |
| Renter-occupied: | 2,328 | 15.6% | 35.2% |
Educational Attainment (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 29,106 | -- | -- |
| Less than 9th grade: | 267 | 0.9% | 4.7% |
| 9th to 12th grade, no diploma: | 631 | 2.2% | 6.1% |
| High school graduate: | 2,632 | 9.0% | 26.4% |
| Some college, no degree: | 2,743 | 9.4% | 19.7% |
| Associate degree: | 1,511 | 5.2% | 8.7% |
| Bachelor's degree: | 9,745 | 33.5% | 20.9% |
| Graduate or professional degree: | 11,577 | 39.8% | 13.7% |
| Percent high school graduate or higher: | -- | 96.9% | 89.1% |
| Percent bachelor's degree or higher: | -- | 73.3% | 34.3% |
Income Information (21042 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $178,207 / yr. | $75,149 / yr. |
| Mean household income: | $209,396 / yr. | $105,833 / yr. |
| Median family income: | $198,553 / yr. | $92,646 / yr. |
| Per capita income: | $86,548 / yr. | $41,261 / yr. |
Employment (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 22,012 | -- | 63.5% |
| Employed: | 21,278 | 97.3% | 96.4% |
| Unemployed: | 594 | 2.7% | 5.3% |
| Not in labor force: | 11,123 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 15,036 | 70.7% | 79.7% |
| Government workers: | 5,040 | 23.7% | 14.2% |
| Self-employed: | 1,141 | 5.4% | 5.9% |
| Unpaid family workers: | 61 | 0.3% | 0.1% |
Race & Ethnicity (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 24,759 | 58.2% | 61.6% |
| Black or African American: | 1,873 | 4.4% | 12.4% |
| American Indian/Alaska Native: | 155 | 0.4% | 1.1% |
| Asian: | 12,951 | 30.5% | 6.0% |
| Native Hawaiian/Pacific Islander: | 62 | 0.1% | 0.2% |
| Some other race: | 437 | 1.0% | 8.4% |
| Two or more races: | 2,291 | 5.4% | 10.2% |
| Hispanic or Latino (any race): | 1,213 | 2.9% | 18.7% |
| Mexican: | 1,432 | 3.4% | 11.2% |
| Puerto Rican: | 407 | 1.0% | 1.8% |
| Cuban: | 248 | 0.6% | 0.7% |
| Other Hispanic or Latino: | 265 | 0.6% | 5.0% |
| Not Hispanic or Latino: | 512 | 1.2% | 81.1% |
Income Distribution (21042 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 224 | 1.5% | 4.9% |
| $10,000 to $14,999: | 179 | 1.2% | 3.8% |
| $15,000 to $24,999: | 221 | 1.5% | 7.0% |
| $25,000 to $34,999: | 365 | 2.4% | 7.4% |
| $35,000 to $49,999: | 663 | 4.4% | 10.7% |
| $50,000 to $74,999: | 1,037 | 7.0% | 16.1% |
| $75,000 to $99,999: | 1,200 | 8.0% | 12.8% |
| $100,000 to $149,999: | 2,179 | 14.6% | 17.1% |
| $150,000 to $199,999: | 2,572 | 17.2% | 8.8% |
| $200,000 or more: | 6,273 | 42.1% | 11.4% |
Commute to Work (21042 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 14,783 | 69.5% | 67.8% |
| Carpooled: | 1,017 | 4.8% | 8.7% |
| Public transportation: | 114 | 0.5% | 4.2% |
| Walked: | 275 | 1.3% | 2.5% |
| Other means: | 217 | 1.0% | 0.9% |
| Worked from home: | 4,867 | 22.9% | 13.8% |
| Mean travel time to work: | 28.9 min | -- | 26.7 min |
Industry (21042 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 47 | 0.2% | 1.6% |
| Construction: | 959 | 4.5% | 6.9% |
| Manufacturing: | 1,329 | 6.2% | 10.0% |
| Wholesale trade: | 222 | 1.0% | 2.4% |
| Retail trade: | 1,135 | 5.3% | 11.0% |
| Transportation, warehousing, utilities: | 678 | 3.2% | 5.8% |
| Information: | 394 | 1.9% | 1.9% |
| Finance, insurance, real estate: | 1,491 | 7.0% | 6.7% |
| Professional, scientific, management: | 4,944 | 23.2% | 12.1% |
| Education, health care, social services: | 5,728 | 26.9% | 23.3% |
| Arts, entertainment, food services: | 1,274 | 6.0% | 9.0% |
| Other services: | 839 | 3.9% | 4.7% |
| Public administration: | 2,238 | 10.5% | 4.7% |
Poverty Status (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 4.1% | 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 (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 41,138 | 96.7% | 91.3% |
| Private health insurance: | 37,570 | 88.3% | 67.6% |
| Public health coverage: | 9,951 | 23.4% | 35.9% |
| Without health insurance: | 1,114 | 2.6% | 8.7% |
Benefits & Assistance (21042 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 12,117 | 81.3% | 77.4% |
| Social Security income: | 4,446 | 29.8% | 31.0% |
| Retirement income: | 4,549 | 30.5% | 21.8% |
| Supplemental Security Income (SSI): | 194 | 1.3% | 4.5% |
| Cash public assistance income: | 121 | 0.8% | 1.8% |
| SNAP (food stamps) benefits: | 309 | 2.1% | 11.4% |
Housing Types (21042 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 11,439 | 75.5% | 61.4% |
| 1-unit, attached: | 1,468 | 9.7% | 6.1% |
| 2 units: | 33 | 0.2% | 3.4% |
| 3 or 4 units: | 58 | 0.4% | 4.3% |
| 5 to 9 units: | 668 | 4.4% | 4.6% |
| 10 to 19 units: | 636 | 4.2% | 4.3% |
| 20 or more units: | 851 | 5.6% | 9.9% |
| Mobile home: | 0 | 0.0% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (21042 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 32 | 0.2% | 0.6% |
| Built 2010 to 2019: | 1,824 | 12.0% | 8.2% |
| Built 2000 to 2009: | 1,664 | 11.0% | 13.5% |
| Built 1990 to 1999: | 2,425 | 16.0% | 13.2% |
| Built 1980 to 1989: | 4,402 | 29.1% | 13.2% |
| Built 1970 to 1979: | 2,125 | 14.0% | 14.6% |
| Built 1960 to 1969: | 1,548 | 10.2% | 10.2% |
| Built 1950 to 1959: | 860 | 5.7% | 9.9% |
| Built 1940 to 1949: | 115 | 0.8% | 4.6% |
| Built 1939 or earlier: | 158 | 1.0% | 12.0% |
Bedrooms (21042 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 231 | 1.5% | 2.4% |
| 1 bedroom: | 560 | 3.7% | 3.0% |
| 2 bedrooms: | 1,818 | 12.0% | 9.1% |
| 3 bedrooms: | 3,140 | 20.7% | 15.9% |
| 4 bedrooms: | 6,327 | 41.8% | 18.8% |
| 5 or more bedrooms: | 3,077 | 20.3% | 17.6% |
Heating Fuel (21042 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 7,540 | 50.6% | 47.1% |
| Bottled, tank, or LP gas: | 147 | 1.0% | 4.9% |
| Electricity: | 6,341 | 42.5% | 40.2% |
| Fuel oil, kerosene, etc.: | 740 | 5.0% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 67 | 0.4% | 1.5% |
| Solar energy: | 30 | 0.2% | 0.1% |
| Other fuel: | 34 | 0.2% | 0.5% |
| No fuel used: | 14 | 0.1% | 0.2% |
Vehicles Available (21042 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 464 | 3.1% | 8.3% |
| 1 vehicle available: | 3,112 | 20.9% | 32.6% |
| 2 vehicles available: | 6,983 | 46.8% | 37.0% |
| 3 or more vehicles available: | 4,354 | 29.2% | 22.1% |
Home Value Distribution (21042 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 104 | 0.8% | 5.7% |
| $50,000 to $99,999: | 157 | 1.2% | 7.8% |
| $100,000 to $149,999: | 32 | 0.3% | 9.2% |
| $150,000 to $199,999: | 267 | 2.1% | 10.8% |
| $200,000 to $299,999: | 374 | 3.0% | 19.9% |
| $300,000 to $499,999: | 1,532 | 12.2% | 24.1% |
| $500,000 to $999,999: | 9,053 | 71.9% | 17.0% |
| $1,000,000 or more: | 1,066 | 8.5% | 5.6% |
Housing Costs (21042 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $3,288 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $1,106 / mo. | $584 / mo. |
| Median gross rent: | $2,197 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.93 | 2.53 |
| Average household size (renter-occupied): | 2.33 | 2.38 |
Households (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 14,913 | -- | -- |
| Married-couple households: | 10,825 | 72.6% | 47.5% |
| Cohabiting couple households: | 5,261 | 35.3% | 7.0% |
| Male householder, no spouse: | 1,797 | 12.0% | 5.4% |
| Female householder, no spouse: | 1,988 | 13.3% | 12.7% |
| Householder living alone: | 6,151 | 41.2% | 28.6% |
| 65 years and over living alone: | 5,266 | 35.3% | 11.8% |
| Average household size: | 2.84 | -- | 2.53 |
| Average family size: | 3.19 | -- | -- |
Marital Status (21042 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 17,341 | -- | -- |
| Never married: | 4,313 | 24.9% | 37.0% |
| Now married: | 11,656 | 67.2% | 49.5% |
| Separated: | 647 | 3.7% | 1.5% |
| Widowed: | 552 | 3.2% | 2.6% |
| Divorced: | 3,263 | 18.8% | 9.3% |
School Enrollment (21042 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 12,160 | -- | -- |
| Nursery school, preschool: | 503 | 4.1% | 5.8% |
| Kindergarten: | 476 | 3.9% | 5.0% |
| Elementary school (grades 1-8): | 5,235 | 43.1% | 40.5% |
| High school (grades 9-12): | 3,482 | 28.6% | 21.4% |
| College or graduate school: | 2,464 | 20.3% | 27.3% |
Veterans & Disability (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 31,517 | -- | -- |
| Veterans: | 2,139 | 6.8% | 6.3% |
| Civilian noninstitutionalized population: | 42,252 | -- | -- |
| With a disability: | 3,275 | 7.8% | 13.4% |
| Under 18 with disability: | 511 | 15.6% | 5.8% |
| 18 to 64 with disability: | 926 | 28.3% | 10.4% |
| 65 and over with disability: | 1,838 | 56.1% | 33.4% |
Mobility (Residence 1 Year Ago) (21042 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 38,660 | 90.9% | 86.9% |
| Different house: | 3,619 | 8.5% | 13.1% |
| Same county: | 1,487 | 41.1% | 7.0% |
| Different county: | 1,910 | 52.8% | 3.2% |
| Different state: | 1,209 | 33.4% | 2.5% |
| Abroad: | 222 | 6.1% | 0.4% |
Place of Birth (21042 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 31,780 | 74.7% | 86.2% |
| Foreign born: | 690 | 1.6% | 13.9% |
| Naturalized citizen: | 10,748 | 1557.7% | 52.7% |
| Not a citizen: | 10,748 | 1557.7% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 10,748 | 1557.7% | 10.5% |
| Asia: | 872 | 126.4% | 31.3% |
| Africa: | 497 | 72.0% | 5.5% |
| Oceania: | 13 | 1.9% | 0.5% |
| Latin America: | 280 | 40.6% | 50.0% |
| Northern America: | 75 | 10.9% | 2.2% |
Language Spoken at Home (21042 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 40,698 | -- | -- |
| English only: | 28,677 | 70.5% | 78.3% |
| Language other than English: | 12,021 | 29.5% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 522 | 1.3% | 13.3% |
| Other Indo-European languages: | 3,171 | 7.8% | 3.5% |
| Asian/Pacific Island languages: | 7,728 | 19.0% | 3.5% |
| Other languages: | 600 | 1.5% | 1.0% |
Computers & Internet (21042 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 14,913 | 100.0% | 93.1% |
| Households with broadband internet: | 14,752 | 98.9% | 89.4% |
Ellicott City, MD21042