PlainZIP

Jefferson, MD · standard

ZIP Code 21755

Frederick County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

5,591
63/sq mi
$137,417
Median income
$529,600
Median home value
46.8%
Bachelor's or higher

The verdict

Jefferson pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 6%
household income, US ZIPs
Top 12%
home value, US ZIPs
63
people per sq mi
87%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21755 against every reporting US ZIP.

ZIP code 21755 is a mid-sized community (a standard USPS delivery area) in Jefferson, Frederick County, Maryland, home to 5,591 residents across 89.2 square miles, a density of 63 people per square mile, in the New York time zone.

ZIP 21755 skews affluent, with a median household income of $137,417 (20% above the Maryland average), while per-capita income is $62,001. 9.0% of residents live below the poverty line, and the unemployment rate reads 2.1%. The typical home here is valued at $529,600 (18% above the state average); renters pay a median of $1,265 monthly, and 86.6% of units are owner-occupied.

A solid share of residents have a four-year degree: 46.8% of adults hold a bachelor's degree or higher, the median age is 43.2, and the average commute is 31 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 21755, plus 6 more within Frederick County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 21755

Top 5 sectors by establishment count in Jefferson, MD

Which industries have the most business establishments in ZIP 21755.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21755, Jefferson, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

5,591

Population

89.2

Area (sq mi)

63

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21755?

43.2

Median Age

50.2%

Male

49.8%

Female

7.1%

Foreign-Born

White 80.8%
African American 4.2%
Asian 1.7%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 10.1%
Hispanic or Latino 12.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$137,417

Median Household Income

+20% vs state

$62,001

Per Capita Income

9.0%

Poverty Rate

2.1%

Unemployment Rate

31.4 min

Mean Commute Time

How ZIP 21755 ranks nationally

Jefferson, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$137,417 Top 6% higher than 94% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 72.8%
Bachelor's Degree or Higher 46.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,231

Total Housing Units

2,136

Occupied Units

95

Vacant Units

2.76

Avg Household Size

Occupancy Type

Owner 86.6%
Renter 13.4%

$529,600

Median Home Value

+18% vs state

$1,265

Median Rent

1991

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+16.5%

YoY Change (2024)

270

HPI Index (2000 = 100)

+170%

Total Change Since 2000

Home values in ZIP 21755 have increased 16.5% over the past year (2024). Since 2000, this ZIP has seen +170% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.3% 182
2021 +9.8% 200
2022 +13.9% 227
2023 +1.8% 232
2024 +16.5% 270

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 112 business establishments in ZIP 21755, employing approximately 674 people with a combined annual payroll of $33,075,000.

112

Businesses

674

Employees

$33.1M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Construction 28 25.0%
Professional, scientific, and technical services 18 16.1%
Other services (except public administration) 15 13.4%
Health care and social assistance 9 8.0%
Retail trade 8 7.1%
Administrative and support and waste management and remediation services 8 7.1%
Real estate and rental and leasing 5 4.5%
Accommodation and food services 5 4.5%
Wholesale trade 3 2.7%
Finance and insurance 3 2.7%
Educational services 3 2.7%
Arts, entertainment, and recreation 3 2.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21755 vs 21769 →

ZIP 21755 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21755 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 21755 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 21755 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
21769 Middletown, MD 11,236 5.8 mi
21718 Burkittsville, MD 151 3.9 mi
21716 Brunswick, MD 4,885 4.3 mi
21703 Frederick, MD 32,854 5.2 mi
21758 Knoxville, MD 4,921 5.3 mi
21714 Braddock Heights, MD 99 5.2 mi
21777 Point Of Rocks, MD 1,470 6.8 mi
21779 Rohrersville, MD 983 6.4 mi
21717 Buckeystown, MD 54 7.2 mi
20180 Lovettsville, VA 6,549 7.4 mi

More ZIP Codes in Frederick County

21702 standard
Frederick, MD
Pop: 38,847
21701 standard
Frederick, MD
Pop: 35,293
21703 standard
Frederick, MD
Pop: 32,854
21771 standard
Mount Airy, MD
Pop: 29,563
21704 standard
Frederick, MD
Pop: 13,321
21774 standard
New Market, MD
Pop: 11,662

Related Areas

Frederick County Jefferson, MD Maryland

Frequently Asked Questions

What county is ZIP code 21755 in? ▼
ZIP code 21755 (Jefferson) is located in Frederick County, Maryland. Frederick County contains multiple ZIP codes, see the full list at /counties/frederick-md.
What is the population of ZIP code 21755? ▼
ZIP code 21755 in Jefferson, MD has a population of 5,591 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21755? ▼
The median household income in ZIP 21755 is $137,417, which is 80% above the national average of $76,288.
What is the average home value in ZIP 21755? ▼
The median home value in ZIP 21755 is $529,600, which is 90% above the national average of $278,155.
What is the demographic makeup of ZIP 21755? ▼
The largest racial group in ZIP 21755 is White at 80.8%. Hispanic or Latino residents make up 12.5% of the population.
How many businesses are in ZIP code 21755? ▼
ZIP code 21755 has 112 business establishments employing approximately 674 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21755? ▼
The top industries by establishment count in ZIP 21755 are: Construction (28), Professional, scientific, and technical services (18), Other services (except public administration) (15). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 21755? ▼
According to the FHFA House Price Index, home values in ZIP 21755 increased by 16.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 170%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 21755? ▼
In ZIP code 21755, 72.8% of residents aged 25+ have a high school diploma or higher, and 46.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 21755? ▼
The mean commute time for workers in ZIP code 21755 is 31.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 21755? ▼
In ZIP code 21755, approximately 86.6% of occupied housing units are owner-occupied and 13.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21755? ▼
The poverty rate in ZIP code 21755 is 9.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.