ZIP Code Tabulation Area · Maryland

ZIP Code 21078: Harford County, MD

ZIP Code 21078 (Harford County, Maryland) has an estimated 20,030 residents in 8,476 households. The median household income is $106,667, the median home value is $385,600 and the median gross rent is $1,433/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

20,030

Margin of error ±745

Median household income

$106,667

Margin of error ±$10,243

Median home value

$385,600

Margin of error ±$17,522

Median gross rent

$1,433/mo

Margin of error ±$102

Median age

46.8 yrs

Margin of error ±2.4 yrs

Mean travel time to work

28.4 min

Margin of error ±3.8 min

How ZIP 21078 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 2107846.8 yrsMaryland39.4 yrsUnited States38.9 yrs

Median household income

ZIP 21078$106,667Maryland$103,678United States$80,734

Per capita income

ZIP 21078$53,163Maryland$52,979United States$44,673

Poverty rate

ZIP 210788.5%Maryland9.4%United States12.5%

Unemployment rate

ZIP 210783.6%Maryland4.9%United States5.2%

Bachelor's degree or higher

ZIP 2107841.6%Maryland43.4%United States35.7%

Median home value

ZIP 21078$385,600Maryland$419,900United States$332,700

Median gross rent

ZIP 21078$1,433/moMaryland$1,705/moUnited States$1,413/mo

Owner-occupied homes

ZIP 2107877.0%Maryland67.6%United States65.2%

Mean travel time to work

ZIP 2107828.4 minMaryland31.1 minUnited States26.4 min

Worked from home

ZIP 2107819.9%Maryland19.3%United States15.1%

All figures for ZIP 21078

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 21078 — ACS 2020–2024 5-year estimates
MeasureZIP 21078Margin of errorMarylandUnited States
Total population20,030±7456,206,011334,922,499
Median age46.8 yrs±2.4 yrs39.4 yrs38.9 yrs
Households8,476±3762,362,928129,227,496
Median household income$106,667±$10,243$103,678$80,734
Per capita income$53,163±$4,010$52,979$44,673
Poverty rate8.5%±2.3 pts9.4%12.5%
Unemployment rate3.6%±1.8 pts4.9%5.2%
Bachelor's degree or higher41.6%±3.9 pts43.4%35.7%
Median home value$385,600±$17,522$419,900$332,700
Median gross rent$1,433/mo±$102$1,705/mo$1,413/mo
Owner-occupied homes77.0%±3.2 pts67.6%65.2%
Mean travel time to work28.4 min±3.8 min31.1 min26.4 min
Worked from home19.9%±4.2 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 21078
GroupZIP 21078MarylandUnited States
White alone, not Hispanic or Latino69.3%46.6%57.4%
Black or African American alone, not Hispanic or Latino16.6%28.9%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.1%0.5%
Asian alone, not Hispanic or Latino2.5%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 Latino0.6%0.7%0.6%
Two or more races, not Hispanic or Latino5.5%4.6%4.3%
Hispanic or Latino (of any race)5.4%12.5%19.3%

Where ZIP 21078 is

State
Maryland
Main county
Harford County
Largest overlapping place
Havre de Grace (19% of the ZIP's land area)
Land area
30.10 sq mi· about 665 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 Harford County

21001 Aberdeen, MD21005 Aberdeen Proving Ground, MD21009 Bel Air South, MD21010 Edgewood, MD21014 Bel Air North, MD21015 Bel Air South, MD21017 Riverside, MD21028 Harford County, MD21034 Harford County, MD21040 Edgewood, MD21047 Fallston, MD21050 Bel Air North, MD21084 Jarrettsville, MD21085 Joppatowne, MD21130 Perryman, MD21132 Pylesville, MD21154 Harford County, MD21160 Harford County, MD21161 Harford County, MD

See every ZIP code in Maryland, or compare ZIP 21078 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.