Adamstown, MD · standard
ZIP Code 21710
Frederick County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 4,515
- 68/sq mi Moderate-density area
- $163,864
- Median income Above-median income area
- $591,100
- Median home value Above-median home value
- 53.1%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Adamstown pairs a top-decile household income with top-decile home values, in a rural, homeowner-dominated area.
- Top 3%
- household income, US ZIPs
- Top 10%
- home value, US ZIPs
- 68
- people per sq mi
- 84%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21710 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 21710 (Adamstown, MD) rose +33.4% from 2023 to 2024. The all-transactions index moved from 210.1 in 2023 to 280.2 in 2024 (2000 = 100).
ZIP code 21710 covers 66.2 square miles in Adamstown, Frederick County, Maryland (a standard USPS delivery area), with a modest 4,515 residents on file, a density of 68 people per square mile, in the New York time zone.
ZIP 21710 skews affluent, with a median household income of $163,864 (44% above the average Maryland ZIP), while per-capita income is $70,997. Both reported hardship measures are comparatively low in absolute terms: poverty is 3.5% and unemployment is 0.9%. Housing is both higher-cost and owner-heavy: median home value is $591,100 (32% above the average Maryland ZIP), while 84.0% of occupied homes are owner-occupied and median rent is $2,381.
This is a highly-educated ZIP: 53.1% of adults hold a bachelor's degree or higher, the median age is 51.9, and the average commute is 34 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Frederick County, so 21710 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 21710
Top 5 sectors by establishment count in Adamstown, MD
Which industries have the most business establishments in ZIP 21710.
- Construction
Construction
10 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
10 establishments
- Other services (except public administration)
Other services (except public administration)
8 establishments
- Retail trade
Retail trade
7 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
5 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 21710, Adamstown, 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
4,515
Population
66.2
Area (sq mi)
68
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 21710?
51.9
Median Age
51.8%
Male
48.2%
Female
11.3%
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?
$163,864
Median Household Income
+44% vs state ZIP avg
$70,997
Per Capita Income
3.5%
Poverty Rate
0.9%
Unemployment Rate
34.3 min
Mean Commute Time
How ZIP 21710 ranks among Maryland ZIPs
Adamstown, 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)
$163,864 Top 13% higher than 87% 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
1,773housing units
1,773
Total Housing Units
1,672
Occupied Units
101
Vacant Units
2.69
Avg Household Size
Occupancy Type
$591,100
Median Home Value
+32% vs state ZIP avg
$2,381
Median Rent
1996
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
+33.4%
YoY Change (2024)
280
HPI Index (2000 = 100)
+180%
Total Change Since 2000
Home values in ZIP 21710 have increased 33.4% over the past year (2024). Since 2000, this ZIP has seen +180% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.2% | 180 |
| 2021 | +7.5% | 194 |
| 2022 | +16.3% | 225 |
| 2023 | -6.7% | 210 |
| 2024 | +33.4% | 280 |
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 55 business establishments in ZIP 21710, employing approximately 524 people with a combined annual payroll of $30,353,000.
55
Businesses
524
Employees
$30.4M
Annual Payroll
7
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 10 | 18.2% |
| Professional, scientific, and technical services | 10 | 18.2% |
| Other services (except public administration) | 8 | 14.6% |
| Retail trade | 7 | 12.7% |
| Administrative and support and waste management and remediation services | 5 | 9.1% |
| Finance and insurance | 4 | 7.3% |
| Transportation and warehousing | 3 | 5.5% |
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 21710 vs 21717 →
ZIP 21710 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
- 21704
Frederick (21704)
13,321 residents
- 21754 6,323
Ijamsville (21754)
6,323 residents
- 21710 4,515
Adamstown (21710)
4,515 residents
- 20842 1,824
Dickerson (20842)
1,824 residents
- 21777 1,470
Point Of Rocks (21777)
1,470 residents
- 20838 259
Barnesville (20838)
259 residents
- 20839 214
Beallsville (20839)
214 residents
- 21790 100
Tuscarora (21790)
100 residents
What this shows Among its immediate neighbors, ZIP 21710 ranks #4 by population - useful context the national average alone can't give.
ZIP 21710 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20838
Barnesville (20838)
$250,000 median income
- 20842
Dickerson (20842)
$204,013 median income
- 21754
Ijamsville (21754)
$182,188 median income
- 21710
Adamstown (21710)
$163,864 median income
- 21704
Frederick (21704)
$161,063 median income
- 20839
Beallsville (20839)
$160,329 median income
- 21777
Point Of Rocks (21777)
$159,708 median income
- 21717
Buckeystown (21717)
$158,413 median income
- 21703
Frederick (21703)
$106,334 median income
What this shows By household income, ZIP 21710 ranks #4 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 21717 | Buckeystown, MD | 54 | 2.8 mi |
| 21790 | Tuscarora, MD | 100 | 3.3 mi |
| 21703 | Frederick, MD | 32,854 | 4.9 mi |
| 21777 | Point Of Rocks, MD | 1,470 | 4.3 mi |
| 20842 | Dickerson, MD | 1,824 | 6.2 mi |
| 21704 | Frederick, MD | 13,321 | 5.6 mi |
| 20839 | Beallsville, MD | 214 | 8.1 mi |
| 20838 | Barnesville, MD | 259 | 6.5 mi |
| 21705 | Frederick, MD | 8 | 7.9 mi |
| 21754 | Ijamsville, MD | 6,323 | 7.8 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 21710, 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 (4,515 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 21710 in?
ZIP code 21710 (Adamstown) 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 21710?
ZIP code 21710 in Adamstown, MD has a population of 4,515 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21710?
The median household income in ZIP 21710 is $163,864, which is 115% above the national average of $76,288.
What is the average home value in ZIP 21710?
The median home value in ZIP 21710 is $591,100, which is 113% above the national average of $278,155.
What is the demographic makeup of ZIP 21710?
The largest racial group in ZIP 21710 is White at 75.5%. Hispanic or Latino residents make up 11.0% of the population.
How many businesses are in ZIP code 21710?
ZIP code 21710 has 55 business establishments employing approximately 524 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21710?
The top industries by establishment count in ZIP 21710 are: Construction (10), Professional, scientific, and technical services (10), Other services (except public administration) (8). There are 7 industry sectors represented in total.
How have home values changed in ZIP code 21710?
According to the FHFA House Price Index, home values in ZIP 21710 increased by 33.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 180%. 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 21710?
In ZIP code 21710, 74.4% of residents aged 25+ have a high school diploma or higher, and 53.1% 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 21710?
The mean commute time for workers in ZIP code 21710 is 34.3 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 21710?
In ZIP code 21710, approximately 84.0% of occupied housing units are owner-occupied and 16.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21710?
The poverty rate in ZIP code 21710 is 3.5% 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 21710's numbers, next.
- See how ZIP 21710 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Adamstown, 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.