21012 ZIP Code
Arnold, Maryland
December 15, 2025
| ZIP Code: | 21012 |
| City/Town: | Arnold |
| County: | Anne Arundel |
| State: | Maryland |
| ZIP Type: | Standard |
| Population: | 23,144 |
| Median Household Income: | $136,705 |
| Per Capita Income: | $68,572 |
| Total Housing Units: | 8,543 |
| Median Home Value: | $516,300 |
| Land Area: | 9.8 sq miles
25.3 sq km |
| Water Area: | 2.8 sq miles
7.2 sq km |
| Coordinates: | 39.0466, -76.4956 |
Population Information (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 23,144 | -- | -- |
| Male: | 11,403 | 49.3% | 49.6% |
| Female: | 11,741 | 50.7% | 50.4% |
| Median Age: | 38.4 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,256 | 5.4% | 5.7% |
| 5 to 9 years: | 1,843 | 8.0% | 6.0% |
| 10 to 14 years: | 1,777 | 7.7% | 6.5% |
| 15 to 19 years: | 1,810 | 7.8% | 6.6% |
| 20 to 24 years: | 1,193 | 5.2% | 6.7% |
| 25 to 34 years: | 2,119 | 9.2% | 13.7% |
| 35 to 44 years: | 3,549 | 15.3% | 12.9% |
| 45 to 54 years: | 3,005 | 13.0% | 12.4% |
| 55 to 59 years: | 1,707 | 7.4% | 6.5% |
| 60 to 64 years: | 1,329 | 5.7% | 6.4% |
| 65 to 74 years: | 2,064 | 8.9% | 9.7% |
| 75 to 84 years: | 1,145 | 4.9% | 4.8% |
| 85 years and over: | 347 | 1.5% | 2.0% |
Housing Information (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $516,300 | -- | $281,900 |
| Median rooms: | 7.5 | -- | 5.5 |
| Median rent: | $2,091 / mo. | -- | $1,268 / mo. |
| Total housing units: | 8,543 | -- | -- |
| Occupied housing units: | 8,144 | 95.3% | 38.0% |
| Vacant housing units: | 399 | 4.7% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 6,911 | 84.9% | 64.8% |
| Renter-occupied: | 1,233 | 15.1% | 35.2% |
Educational Attainment (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 15,265 | -- | -- |
| Less than 9th grade: | 143 | 0.9% | 4.7% |
| 9th to 12th grade, no diploma: | 202 | 1.3% | 6.1% |
| High school graduate: | 1,729 | 11.3% | 26.4% |
| Some college, no degree: | 3,075 | 20.1% | 19.7% |
| Associate degree: | 1,410 | 9.2% | 8.7% |
| Bachelor's degree: | 4,936 | 32.3% | 20.9% |
| Graduate or professional degree: | 3,770 | 24.7% | 13.7% |
| Percent high school graduate or higher: | -- | 97.7% | 89.1% |
| Percent bachelor's degree or higher: | -- | 57.0% | 34.3% |
Income Information (21012 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $136,705 / yr. | $75,149 / yr. |
| Mean household income: | $166,484 / yr. | $105,833 / yr. |
| Median family income: | $149,809 / yr. | $92,646 / yr. |
| Per capita income: | $68,572 / yr. | $41,261 / yr. |
Employment (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 12,507 | -- | 63.5% |
| Employed: | 11,777 | 96.5% | 96.4% |
| Unemployed: | 428 | 3.5% | 5.3% |
| Not in labor force: | 5,314 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 8,236 | 69.9% | 79.7% |
| Government workers: | 2,877 | 24.4% | 14.2% |
| Self-employed: | 616 | 5.2% | 5.9% |
| Unpaid family workers: | 48 | 0.4% | 0.1% |
Race & Ethnicity (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 18,888 | 81.6% | 61.6% |
| Black or African American: | 1,191 | 5.1% | 12.4% |
| American Indian/Alaska Native: | 32 | 0.1% | 1.1% |
| Asian: | 846 | 3.7% | 6.0% |
| Native Hawaiian/Pacific Islander: | 0 | 0.0% | 0.2% |
| Some other race: | 189 | 0.8% | 8.4% |
| Two or more races: | 1,998 | 8.6% | 10.2% |
| Hispanic or Latino (any race): | 915 | 4.0% | 18.7% |
| Mexican: | 2,200 | 9.5% | 11.2% |
| Puerto Rican: | 724 | 3.1% | 1.8% |
| Cuban: | 295 | 1.3% | 0.7% |
| Other Hispanic or Latino: | 35 | 0.2% | 5.0% |
| Not Hispanic or Latino: | 1,146 | 5.0% | 81.1% |
Income Distribution (21012 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 138 | 1.7% | 4.9% |
| $10,000 to $14,999: | 54 | 0.7% | 3.8% |
| $15,000 to $24,999: | 122 | 1.5% | 7.0% |
| $25,000 to $34,999: | 191 | 2.3% | 7.4% |
| $35,000 to $49,999: | 312 | 3.8% | 10.7% |
| $50,000 to $74,999: | 607 | 7.5% | 16.1% |
| $75,000 to $99,999: | 1,072 | 13.2% | 12.8% |
| $100,000 to $149,999: | 2,127 | 26.1% | 17.1% |
| $150,000 to $199,999: | 1,315 | 16.1% | 8.8% |
| $200,000 or more: | 2,206 | 27.1% | 11.4% |
Commute to Work (21012 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 8,646 | 73.4% | 67.8% |
| Carpooled: | 623 | 5.3% | 8.7% |
| Public transportation: | 79 | 0.7% | 4.2% |
| Walked: | 53 | 0.5% | 2.5% |
| Other means: | 171 | 1.5% | 0.9% |
| Worked from home: | 2,282 | 19.4% | 13.8% |
| Mean travel time to work: | 32.0 min | -- | 26.7 min |
Industry (21012 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 28 | 0.2% | 1.6% |
| Construction: | 688 | 5.8% | 6.9% |
| Manufacturing: | 470 | 4.0% | 10.0% |
| Wholesale trade: | 552 | 4.7% | 2.4% |
| Retail trade: | 885 | 7.5% | 11.0% |
| Transportation, warehousing, utilities: | 352 | 3.0% | 5.8% |
| Information: | 187 | 1.6% | 1.9% |
| Finance, insurance, real estate: | 771 | 6.5% | 6.7% |
| Professional, scientific, management: | 2,297 | 19.5% | 12.1% |
| Education, health care, social services: | 2,501 | 21.2% | 23.3% |
| Arts, entertainment, food services: | 1,123 | 9.5% | 9.0% |
| Other services: | 508 | 4.3% | 4.7% |
| Public administration: | 1,415 | 12.0% | 4.7% |
Poverty Status (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 3.6% | 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 (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 22,388 | 96.7% | 91.3% |
| Private health insurance: | 19,981 | 86.3% | 67.6% |
| Public health coverage: | 5,641 | 24.4% | 35.9% |
| Without health insurance: | 402 | 1.7% | 8.7% |
Benefits & Assistance (21012 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 6,966 | 85.5% | 77.4% |
| Social Security income: | 2,232 | 27.4% | 31.0% |
| Retirement income: | 2,556 | 31.4% | 21.8% |
| Supplemental Security Income (SSI): | 219 | 2.7% | 4.5% |
| Cash public assistance income: | 87 | 1.1% | 1.8% |
| SNAP (food stamps) benefits: | 276 | 3.4% | 11.4% |
Housing Types (21012 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 6,114 | 71.6% | 61.4% |
| 1-unit, attached: | 1,671 | 19.6% | 6.1% |
| 2 units: | 16 | 0.2% | 3.4% |
| 3 or 4 units: | 0 | 0.0% | 4.3% |
| 5 to 9 units: | 420 | 4.9% | 4.6% |
| 10 to 19 units: | 184 | 2.2% | 4.3% |
| 20 or more units: | 103 | 1.2% | 9.9% |
| Mobile home: | 35 | 0.4% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (21012 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 0 | 0.0% | 0.6% |
| Built 2010 to 2019: | 421 | 4.9% | 8.2% |
| Built 2000 to 2009: | 268 | 3.1% | 13.5% |
| Built 1990 to 1999: | 1,282 | 15.0% | 13.2% |
| Built 1980 to 1989: | 2,284 | 26.7% | 13.2% |
| Built 1970 to 1979: | 2,426 | 28.4% | 14.6% |
| Built 1960 to 1969: | 678 | 7.9% | 10.2% |
| Built 1950 to 1959: | 712 | 8.3% | 9.9% |
| Built 1940 to 1949: | 239 | 2.8% | 4.6% |
| Built 1939 or earlier: | 233 | 2.7% | 12.0% |
Bedrooms (21012 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 36 | 0.4% | 2.4% |
| 1 bedroom: | 158 | 1.8% | 3.0% |
| 2 bedrooms: | 1,003 | 11.7% | 9.1% |
| 3 bedrooms: | 2,865 | 33.5% | 15.9% |
| 4 bedrooms: | 3,532 | 41.3% | 18.8% |
| 5 or more bedrooms: | 949 | 11.1% | 17.6% |
Heating Fuel (21012 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 2,851 | 35.0% | 47.1% |
| Bottled, tank, or LP gas: | 247 | 3.0% | 4.9% |
| Electricity: | 4,257 | 52.3% | 40.2% |
| Fuel oil, kerosene, etc.: | 625 | 7.7% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 52 | 0.6% | 1.5% |
| Solar energy: | 36 | 0.4% | 0.1% |
| Other fuel: | 19 | 0.2% | 0.5% |
| No fuel used: | 57 | 0.7% | 0.2% |
Vehicles Available (21012 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 71 | 0.9% | 8.3% |
| 1 vehicle available: | 1,995 | 24.5% | 32.6% |
| 2 vehicles available: | 3,569 | 43.8% | 37.0% |
| 3 or more vehicles available: | 2,509 | 30.8% | 22.1% |
Home Value Distribution (21012 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 60 | 0.9% | 5.7% |
| $50,000 to $99,999: | 32 | 0.5% | 7.8% |
| $100,000 to $149,999: | 48 | 0.7% | 9.2% |
| $150,000 to $199,999: | 41 | 0.6% | 10.8% |
| $200,000 to $299,999: | 359 | 5.2% | 19.9% |
| $300,000 to $499,999: | 2,765 | 40.0% | 24.1% |
| $500,000 to $999,999: | 3,046 | 44.1% | 17.0% |
| $1,000,000 or more: | 560 | 8.1% | 5.6% |
Housing Costs (21012 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $2,647 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $739 / mo. | $584 / mo. |
| Median gross rent: | $2,091 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.80 | 2.53 |
| Average household size (renter-occupied): | 2.96 | 2.38 |
Households (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 8,144 | -- | -- |
| Married-couple households: | 5,144 | 63.2% | 47.5% |
| Cohabiting couple households: | 2,409 | 29.6% | 7.0% |
| Male householder, no spouse: | 957 | 11.8% | 5.4% |
| Female householder, no spouse: | 1,610 | 19.8% | 12.7% |
| Householder living alone: | 3,267 | 40.1% | 28.6% |
| 65 years and over living alone: | 2,385 | 29.3% | 11.8% |
| Average household size: | 2.82 | -- | 2.53 |
| Average family size: | 3.21 | -- | -- |
Marital Status (21012 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 9,006 | -- | -- |
| Never married: | 2,463 | 27.3% | 37.0% |
| Now married: | 5,588 | 62.0% | 49.5% |
| Separated: | 140 | 1.6% | 1.5% |
| Widowed: | 554 | 6.2% | 2.6% |
| Divorced: | 2,342 | 26.0% | 9.3% |
School Enrollment (21012 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 6,965 | -- | -- |
| Nursery school, preschool: | 441 | 6.3% | 5.8% |
| Kindergarten: | 274 | 3.9% | 5.0% |
| Elementary school (grades 1-8): | 3,070 | 44.1% | 40.5% |
| High school (grades 9-12): | 1,592 | 22.9% | 21.4% |
| College or graduate school: | 1,588 | 22.8% | 27.3% |
Veterans & Disability (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 16,776 | -- | -- |
| Veterans: | 2,085 | 12.4% | 6.3% |
| Civilian noninstitutionalized population: | 22,790 | -- | -- |
| With a disability: | 2,166 | 9.5% | 13.4% |
| Under 18 with disability: | 299 | 13.8% | 5.8% |
| 18 to 64 with disability: | 996 | 46.0% | 10.4% |
| 65 and over with disability: | 871 | 40.2% | 33.4% |
Mobility (Residence 1 Year Ago) (21012 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 20,419 | 88.2% | 86.9% |
| Different house: | 2,562 | 11.1% | 13.1% |
| Same county: | 1,781 | 69.5% | 7.0% |
| Different county: | 701 | 27.4% | 3.2% |
| Different state: | 257 | 10.0% | 2.5% |
| Abroad: | 80 | 3.1% | 0.4% |
Place of Birth (21012 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 21,367 | 92.3% | 86.2% |
| Foreign born: | 555 | 2.4% | 13.9% |
| Naturalized citizen: | 1,777 | 320.2% | 52.7% |
| Not a citizen: | 1,777 | 320.2% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 1,777 | 320.2% | 10.5% |
| Asia: | 205 | 36.9% | 31.3% |
| Africa: | 116 | 20.9% | 5.5% |
| Oceania: | 24 | 4.3% | 0.5% |
| Latin America: | 707 | 127.4% | 50.0% |
| Northern America: | 33 | 5.9% | 2.2% |
Language Spoken at Home (21012 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 21,888 | -- | -- |
| English only: | 19,651 | 89.8% | 78.3% |
| Language other than English: | 2,237 | 10.2% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 1,160 | 5.3% | 13.3% |
| Other Indo-European languages: | 547 | 2.5% | 3.5% |
| Asian/Pacific Island languages: | 442 | 2.0% | 3.5% |
| Other languages: | 88 | 0.4% | 1.0% |
Computers & Internet (21012 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 8,144 | 100.0% | 93.1% |
| Households with broadband internet: | 8,019 | 98.5% | 89.4% |
Arnold, MD21012