US ZIP Code
21755

Jefferson, MD

Frederick County  ·  Maryland

● Active
👥 5,740 Population ↑ 2% since 2019
💰 $134,677 Median HH Income
▲ 76% above avg ↑ 23% since 2019
🎂 44.1 Median Age ↓ 4% since 2019
🏠 $493,700 Median Home Value
▲ 77% above avg ↑ 35% since 2019
🎓 49.0% College Grads
▲ 26% above avg
📊 3.6% Unemployment
▼ 27% below avg ↓ 24% since 2019
ZIP Code Details
ZIP Code21755
CityJefferson
StateMaryland (MD)
CountyFrederick County
Area Code227/240/301
Elevation265 ft
Latitude39.359655
Longitude-77.568128
TimezoneNew York (DST)
FIPS24021
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 50.1% (2,873) Female 50.0% (2,867) ♀

Race & Ethnicity

White: 75.5%Hispanic: 16.3%Black: 3.9%Asian: 2.3%Other: 2.1%Race
White75.5%
Hispanic16.3%
Black3.9%
Asian2.3%
Other2.1%

Age Breakdown

Under 5
5%
5–17
16%
18–24
8%
25–44
22%
45–64
30%
65+
9%

Key Indicators

Median Age44.1 yrs ↓ 4% since 2019
Avg Household Size2.72
Below Poverty8.1% ▼ 19% below avg
College Grads49.0% ▲ 26% above avg
Unemployment3.6% ▼ 27% below avg
No HS Diploma61 (1.6%)
HS Graduate1,016 (26.5%)
Some College372 (9.7%)
Associates512 (13.3%)
Bachelors256 (6.7%)
Graduate Degree1,624 (42.3%)

Education

No HS: 1.6%HS Grad: 26.5%Some College: 9.7%Associates: 13.3%Bachelors: 6.7%Graduate: 42.3%Edu
No HS1.6%
HS Grad26.5%
Some College9.7%
Associates13.3%
Bachelors6.7%
Graduate42.3%
Housing & Income

Housing Tenure

Owner: 84.8%Renter: 15.2%Tenure
Owner84.8%
Renter15.2%

Home Value Distribution

Under $50k
3%
$100k–150k
0%
$150k–200k
2%
$200k–300k
8%
$300k–500k
40%
Over $500k
48%

Financials

Median HH Income$134,677 ▲ 76% above avg ↑ 23% since 2019
Median Home Value$493,700 ▲ 77% above avg ↑ 35% since 2019
Home/Income Ratio3.7x (nat avg ~3.5x)
Median Rent$1,268/mo ↑ 13% since 2019
Total Units2,200
Vacant Units94
Avg HH Size2.72

Income Distribution

Under $25k
4%
$25k–50k
8%
$50k–75k
10%
$75k–100k
12%
$100k–150k
25%
$150k–200k
19%
Over $200k
23%
Employment & Commute

How People Get to Work

Drove Alone
77%
Public Transit
1%
Walked
1%
Work From Home
21%

Commute Time

Under 15 min
18%
15–30 min
41%
30–45 min
14%
Over 45 min
28%
Housing Stock

Year Built

1940s–1950s
4%
1960s–1970s
16%
1980s–1990s
19%
2000+
60%

Summary

Total Units2,200
Vacant94
Owner Occupied84.8%
Renter Occupied15.2%
Avg HH Size2.72
Frequently Asked Questions
ZIP code 21755 is in Jefferson, MD, in Frederick County.
ZIP code 21755 is located in Maryland (MD).
ZIP code 21755 is in Frederick County, MD.
ZIP 21755 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 21755 is 5,740 people (ACS 2023).
The median household income in ZIP code 21755 is $134,677 (ACS 2023).
The median home value in ZIP 21755 is $493,700 (ACS 2023).
About ZIP Code 21755

ZIP code 21755 is located in Jefferson, Maryland, within Frederick County. With a population of 5,740, this is a lightly populated ZIP code with a middle-aged community — the median age is 44.1 years. Economically, 21755 is a upper-middle-income ZIP code: the median household income of $134,677 is significantly above the national average.

Real estate in ZIP code 21755 represents a premium housing market. The median home value of $493,700 is significantly above the national average. Renters can expect to pay around $1,268 per month in median rent. Homeownership is strong here — 84.8% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 35% since 2019.

The population of 21755 is primarily White (75.52%). Residents are well-educated — 49.0% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 8.1%. Household income has grown by 23% since 2019.

The unemployment rate in 21755 stands at 3.6%, which is below the national average. About 19% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 72%.

Overall, ZIP code 21755 in Jefferson, MD is characterized as upper-middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 5,740 residents, a median household income of $134,677, and a median home value of $493,700, it offers a clear picture of life in this part of Maryland.