Manchester, MD · standard
ZIP Code 21102
Carroll County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 11,751
- 112/sq mi High-density area
- $135,069
- Median income Above-median income area
- $392,800
- Median home value Above-median home value
- 34.7%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Manchester pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 6%
- household income, US ZIPs
- Top 21%
- home value, US ZIPs
- 112
- people per sq mi
- 89%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21102 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 21102 (Manchester, MD) rose +7.5% from 2023 to 2024. The all-transactions index moved from 227.9 in 2023 to 244.9 in 2024 (2000 = 100).
ZIP code 21102 is a mid-sized community (a standard USPS delivery area) in Manchester, Carroll County, Maryland, home to 11,751 residents across 104.8 square miles, a density of 112 people per square mile, in the New York time zone.
ZIP 21102 skews affluent, with a median household income of $135,069 (18% above the average Maryland ZIP), while per-capita income is $54,845. Both reported hardship measures are comparatively low in absolute terms: poverty is 3.4% and unemployment is 1.2%. Median home value is $392,800 (12% below the average Maryland ZIP) and median rent is $1,484; 89.4% of occupied homes are owner-occupied.
A solid share of residents have a four-year degree: 34.7% of adults hold a bachelor's degree or higher, the median age is 44.5, and the average commute is 35 minutes. The page also surfaces 8 ZIP codes within roughly 10 miles and 6 more in Carroll County, so 21102 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 21102
Top 5 sectors by establishment count in Manchester, MD
Which industries have the most business establishments in ZIP 21102.
- Construction
Construction
63 establishments
- Other services (except public administration)
Other services (except public administration)
30 establishments
- Professional, scientific, and technical services 21
Professional, scientific, and technical services
21 establishments
- Health care and social assistance 21
Health care and social assistance
21 establishments
- Retail trade 17
Retail trade
17 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 21102, Manchester, 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
11,751
Population
104.8
Area (sq mi)
112
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 21102?
44.5
Median Age
51.8%
Male
48.2%
Female
4.9%
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?
$135,069
Median Household Income
+18% vs state ZIP avg
$54,845
Per Capita Income
3.4%
Poverty Rate
1.2%
Unemployment Rate
35.4 min
Mean Commute Time
How ZIP 21102 ranks among Maryland ZIPs
Manchester, 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)
$135,069 Top 28% higher than 72% 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
4,511housing units
4,511
Total Housing Units
4,413
Occupied Units
98
Vacant Units
2.73
Avg Household Size
Occupancy Type
$392,800
Median Home Value
-12% vs state ZIP avg
$1,484
Median Rent
1982
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
+7.5%
YoY Change (2024)
245
HPI Index (2000 = 100)
+145%
Total Change Since 2000
Home values in ZIP 21102 have increased 7.5% over the past year (2024). Since 2000, this ZIP has seen +145% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +4.3% | 178 |
| 2021 | +10.1% | 196 |
| 2022 | +9.8% | 215 |
| 2023 | +5.8% | 228 |
| 2024 | +7.5% | 245 |
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 229 business establishments in ZIP 21102, employing approximately 1,297 people with a combined annual payroll of $57,543,000.
229
Businesses
1,297
Employees
$57.5M
Annual Payroll
13
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 63 | 27.5% |
| Other services (except public administration) | 30 | 13.1% |
| Professional, scientific, and technical services | 21 | 9.2% |
| Health care and social assistance | 21 | 9.2% |
| Retail trade | 17 | 7.4% |
| Administrative and support and waste management and remediation services | 17 | 7.4% |
| Transportation and warehousing | 13 | 5.7% |
| Accommodation and food services | 13 | 5.7% |
| Finance and insurance | 8 | 3.5% |
| Real estate and rental and leasing | 8 | 3.5% |
| Manufacturing | 5 | 2.2% |
| Wholesale trade | 4 | 1.8% |
| Arts, entertainment, and recreation | 4 | 1.8% |
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 21102 vs 21074 →
ZIP 21102 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 17331
Hanover (17331)
50,292 residents
- 21157
Westminster (21157)
36,920 residents
- 21074 15,084
Hampstead (21074)
15,084 residents
- 21102 11,751
Manchester (21102)
11,751 residents
- 17327 7,565
Glen Rock (17327)
7,565 residents
- 21053 3,305
Freeland (21053)
3,305 residents
- 17329 2,494
Glenville (17329)
2,494 residents
- 21155 2,371
Upperco (21155)
2,371 residents
- 17311 252
Codorus (17311)
252 residents
What this shows Among its immediate neighbors, ZIP 21102 ranks #4 by population - useful context the national average alone can't give.
ZIP 21102 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 21102
Manchester (21102)
$135,069 median income
- 21155
Upperco (21155)
$123,158 median income
- 17329
Glenville (17329)
$121,309 median income
- 21074
Hampstead (21074)
$108,536 median income
- 21157
Westminster (21157)
$104,966 median income
- 17327
Glen Rock (17327)
$101,106 median income
- 21053
Freeland (21053)
$89,497 median income
- 17331
Hanover (17331)
$79,488 median income
- 17311
Codorus (17311)
$77,500 median income
What this shows By household income, ZIP 21102 ranks the highest of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 21102, 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 (11,751 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Carroll County
Related Areas
Frequently Asked Questions
What county is ZIP code 21102 in?
ZIP code 21102 (Manchester) is located in Carroll County, Maryland. Carroll County contains multiple ZIP codes, see the full list at /counties/carroll-md.
What is the population of ZIP code 21102?
ZIP code 21102 in Manchester, MD has a population of 11,751 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21102?
The median household income in ZIP 21102 is $135,069, which is 77% above the national average of $76,288.
What is the average home value in ZIP 21102?
The median home value in ZIP 21102 is $392,800, which is 41% above the national average of $278,155.
What is the demographic makeup of ZIP 21102?
The largest racial group in ZIP 21102 is White at 90.4%. Hispanic or Latino residents make up 2.6% of the population.
How many businesses are in ZIP code 21102?
ZIP code 21102 has 229 business establishments employing approximately 1,297 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21102?
The top industries by establishment count in ZIP 21102 are: Construction (63), Other services (except public administration) (30), Professional, scientific, and technical services (21). There are 13 industry sectors represented in total.
How have home values changed in ZIP code 21102?
According to the FHFA House Price Index, home values in ZIP 21102 increased by 7.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 145%. 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 21102?
In ZIP code 21102, 66.9% of residents aged 25+ have a high school diploma or higher, and 34.7% 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 21102?
The mean commute time for workers in ZIP code 21102 is 35.4 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 21102?
In ZIP code 21102, approximately 89.4% of occupied housing units are owner-occupied and 10.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21102?
The poverty rate in ZIP code 21102 is 3.4% 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 21102's numbers, next.
- See how ZIP 21102 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Manchester, 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.