Charlestown, MA · standard
ZIP Code 02129
Suffolk County, Massachusetts - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 16,439
- 4,698/sq mi High-density area
- $157,247
- Median income Above-median income area
- $912,000
- Median home value Above-median home value
- 71.2%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Charlestown pairs a top-decile household income with top-decile home values, in a suburban-density, mixed-tenure area.
- Top 3%
- household income, US ZIPs
- Top 3%
- home value, US ZIPs
- 4,698
- people per sq mi
- 51%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 02129 against every reporting US ZIP.
ZIP code 02129 is a mid-sized community (a standard USPS delivery area) in Charlestown, Suffolk County, Massachusetts, home to 16,439 residents across 3.5 square miles, a density of 4,698 people per square mile, in the New York time zone.
ZIP 02129 skews affluent, with a median household income of $157,247 (36% above the average Massachusetts ZIP), while per-capita income is $100,420. The poverty rate is 8.8%, with unemployment at 3.6%; those measures add context to the income figure. Median home value is $912,000 (52% above the average Massachusetts ZIP) and median rent is $2,259; 50.5% of occupied homes are owner-occupied.
This is a highly-educated ZIP: 71.2% of adults hold a bachelor's degree or higher, the median age is 35.6, and the average commute is 29 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Suffolk County, so 02129 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 02129
Top 5 sectors by establishment count in Charlestown, MA
Which industries have the most business establishments in ZIP 02129.
- Professional, scientific, and technical services
Professional, scientific, and technical services
113 establishments
- Other services (except public administration)
Other services (except public administration)
61 establishments
- Real estate and rental and leasing
Real estate and rental and leasing
49 establishments
- Health care and social assistance 44
Health care and social assistance
44 establishments
- Retail trade 41
Retail trade
41 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 02129, Charlestown, MA · 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
16,439
Population
3.5
Area (sq mi)
4,698
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 02129?
35.6
Median Age
47.3%
Male
52.7%
Female
13.1%
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?
$157,247
Median Household Income
+36% vs state ZIP avg
$100,420
Per Capita Income
8.8%
Poverty Rate
3.6%
Unemployment Rate
28.7 min
Mean Commute Time
How ZIP 02129 ranks among Massachusetts ZIPs
Charlestown, MA household income vs. every Massachusetts ZIP code
Median household income among 505 reporting Massachusetts ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$157,247 Top 14% higher than 86% of 505 Massachusetts ZIPs
Each bar is a $20K-wide band; taller bars hold more Massachusetts 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
10,107housing units
10,107
Total Housing Units
9,606
Occupied Units
501
Vacant Units
2.08
Avg Household Size
Occupancy Type
$912,000
Median Home Value
+52% vs state ZIP avg
$2,259
Median Rent
1938
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
+22.3%
YoY Change (2022)
314
HPI Index (2000 = 100)
+214%
Total Change Since 2000
Home values in ZIP 02129 have increased 22.3% over the past year (2022). Since 2000, this ZIP has seen +214% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2018 | +15.2% | 267 |
| 2019 | -3.6% | 257 |
| 2020 | +0.4% | 258 |
| 2021 | -0.6% | 257 |
| 2022 | +22.3% | 314 |
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 2022. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 536 business establishments in ZIP 02129, employing approximately 13,245 people with a combined annual payroll of $1,091,521,000.
536
Businesses
13,245
Employees
$1.1B
Annual Payroll
17
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 113 | 21.1% |
| Other services (except public administration) | 61 | 11.4% |
| Real estate and rental and leasing | 49 | 9.1% |
| Health care and social assistance | 44 | 8.2% |
| Retail trade | 41 | 7.7% |
| Accommodation and food services | 40 | 7.5% |
| Manufacturing | 30 | 5.6% |
| Construction | 28 | 5.2% |
| Administrative and support and waste management and remediation services | 26 | 4.8% |
| Finance and insurance | 24 | 4.5% |
| Wholesale trade | 20 | 3.7% |
| Information | 13 | 2.4% |
| Arts, entertainment, and recreation | 13 | 2.4% |
| Educational services | 12 | 2.2% |
| Transportation and warehousing | 11 | 2.0% |
| Utilities | 7 | 1.3% |
| Management of companies and enterprises | 3 | 0.6% |
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 02129 vs 02113 →
ZIP 02129 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 02149
Everett (02149)
41,550 residents
- 02143
Somerville (02143)
24,514 residents
- 02129 16,439
Charlestown (02129)
16,439 residents
- 02114 11,999
Boston (02114)
11,999 residents
- 02141 11,910
Cambridge (02141)
11,910 residents
- 02111 7,383
Boston (02111)
7,383 residents
- 02113 6,915
Boston (02113)
6,915 residents
- 02108 3,825
Boston (02108)
3,825 residents
- 02109 3,771
Boston (02109)
3,771 residents
What this shows Among its immediate neighbors, ZIP 02129 ranks #3 by population - useful context the national average alone can't give.
ZIP 02129 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 02108
Boston (02108)
$212,928 median income
- 02109
Boston (02109)
$158,843 median income
- 02129
Charlestown (02129)
$157,247 median income
- 02110
Boston (02110)
$138,438 median income
- 02114
Boston (02114)
$132,210 median income
- 02143
Somerville (02143)
$130,753 median income
- 02141
Cambridge (02141)
$126,522 median income
- 02113
Boston (02113)
$113,314 median income
- 02111
Boston (02111)
$87,404 median income
What this shows By household income, ZIP 02129 ranks #3 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 02113 | Boston, MA | 6,915 | 1.0 mi |
| 02203 | Boston, MA | 0 | 1.3 mi |
| 02114 | Boston, MA | 11,999 | 1.2 mi |
| 02109 | Boston, MA | 3,771 | 1.1 mi |
| 02108 | Boston, MA | 3,825 | 1.5 mi |
| 02141 | Cambridge, MA | 11,910 | 1.3 mi |
| 02110 | Boston, MA | 1,733 | 1.6 mi |
| 02111 | Boston, MA | 7,383 | 2.1 mi |
| 02149 | Everett, MA | 41,550 | 1.9 mi |
| 02143 | Somerville, MA | 24,514 | 1.8 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 02129, both outside MA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (16,439 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Suffolk County
Related Areas
Frequently Asked Questions
What county is ZIP code 02129 in?
ZIP code 02129 (Charlestown) is located in Suffolk County, Massachusetts. Suffolk County contains multiple ZIP codes, see the full list at /counties/suffolk-ma.
What is the population of ZIP code 02129?
ZIP code 02129 in Charlestown, MA has a population of 16,439 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 02129?
The median household income in ZIP 02129 is $157,247, which is 106% above the national average of $76,288.
What is the average home value in ZIP 02129?
The median home value in ZIP 02129 is $912,000, which is 228% above the national average of $278,155.
What is the demographic makeup of ZIP 02129?
The largest racial group in ZIP 02129 is White at 72.1%. Hispanic or Latino residents make up 9.5% of the population.
How many businesses are in ZIP code 02129?
ZIP code 02129 has 536 business establishments employing approximately 13,245 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 02129?
The top industries by establishment count in ZIP 02129 are: Professional, scientific, and technical services (113), Other services (except public administration) (61), Real estate and rental and leasing (49). There are 17 industry sectors represented in total.
How have home values changed in ZIP code 02129?
According to the FHFA House Price Index, home values in ZIP 02129 increased by 22.3% in 2022. Since 2000, home values in this ZIP have appreciated by approximately 214%. 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 02129?
In ZIP code 02129, 82.4% of residents aged 25+ have a high school diploma or higher, and 71.2% 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 02129?
The mean commute time for workers in ZIP code 02129 is 28.7 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 02129?
In ZIP code 02129, approximately 50.5% of occupied housing units are owner-occupied and 49.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 02129?
The poverty rate in ZIP code 02129 is 8.8% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
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What to do with ZIP 02129's numbers, next.
- See how ZIP 02129 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Charlestown, MA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.