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 Moderate-density area
- $137,417
- Median income Above-median income area
- $529,600
- Median home value Above-median home value
- 46.8%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 21755 (Jefferson, MD) rose +16.5% from 2023 to 2024. The all-transactions index moved from 231.5 in 2023 to 269.7 in 2024 (2000 = 100).
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 average Maryland ZIP), while per-capita income is $62,001. The poverty rate is 9.0%, with unemployment at 2.1%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $529,600 (18% above the average Maryland ZIP), while 86.6% of occupied homes are owner-occupied and median rent is $1,265.
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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Frederick County, so 21755 can be compared with both its immediate and county-level context.
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.
- Construction
Construction
28 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
18 establishments
- Other services (except public administration)
Other services (except public administration)
15 establishments
- Health care and social assistance 9
Health care and social assistance
9 establishments
- Retail trade 8
Retail trade
8 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, 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
Who lives in ZIP 21755?
43.2
Median Age
50.2%
Male
49.8%
Female
7.1%
Foreign-Born
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 ZIP avg
$62,001
Per Capita Income
9.0%
Poverty Rate
2.1%
Unemployment Rate
31.4 min
Mean Commute Time
How ZIP 21755 ranks among Maryland ZIPs
Jefferson, MD household income vs. every Maryland ZIP code
Median household income among 419 reporting Maryland ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$137,417 Top 27% higher than 73% of 419 Maryland ZIPs
Each bar is a $20K-wide band; taller bars hold more Maryland 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
2,231housing units
2,231
Total Housing Units
2,136
Occupied Units
95
Vacant Units
2.76
Avg Household Size
Occupancy Type
$529,600
Median Home Value
+18% vs state ZIP avg
$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.
- 21703
Frederick (21703)
32,854 residents
- 21769 11,236
Middletown (21769)
11,236 residents
- 20180 6,549
Lovettsville (20180)
6,549 residents
- 21755 5,591
Jefferson (21755)
5,591 residents
- 21758 4,921
Knoxville (21758)
4,921 residents
- 21716 4,885
Brunswick (21716)
4,885 residents
- 21777 1,470
Point Of Rocks (21777)
1,470 residents
- 21779 983
Rohrersville (21779)
983 residents
- 21718 151
Burkittsville (21718)
151 residents
What this shows Among its immediate neighbors, ZIP 21755 ranks #4 by population - useful context the national average alone can't give.
ZIP 21755 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 21714
Braddock Heights (21714)
$161,806 median income
- 21777
Point Of Rocks (21777)
$159,708 median income
- 21717
Buckeystown (21717)
$158,413 median income
- 21769
Middletown (21769)
$151,563 median income
- 20180
Lovettsville (20180)
$151,483 median income
- 21755
Jefferson (21755)
$137,417 median income
- 21758
Knoxville (21758)
$111,528 median income
- 21716
Brunswick (21716)
$109,382 median income
- 21703
Frederick (21703)
$106,334 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 21755, both outside MD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (5,591 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Frederick County
Related Areas
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.
Related
Take this with you
What to do with ZIP 21755's numbers, next.
- See how ZIP 21755 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Jefferson, MD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.