| ZIP Code | 02138 |
|---|---|
| City | Cambridge |
| State | Massachusetts (MA) |
| County | Middlesex County |
| Area Code | 508/617/857 |
| Elevation | 53 ft |
| Latitude | 42.379637 |
|---|---|
| Longitude | -71.135152 |
| Timezone | New York (DST) |
| FIPS | 25017 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 28.7 yrs ↓ 2% since 2019 |
|---|---|
| Avg Household Size | 2.05 |
| Below Poverty | 9.7% ≈ Avg |
| College Grads | 86.3% ▲ 123% above avg |
| Unemployment | 3.0% ▼ 39% below avg |
| No HS Diploma | 110 (0.6%) |
| HS Graduate | 931 (4.9%) |
| Some College | 513 (2.7%) |
| Associates | 1,043 (5.5%) |
| Bachelors | 415 (2.2%) |
| Graduate Degree | 15,869 (84%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $122,040 ▲ 60% above avg ↑ 16% since 2019 |
|---|---|
| Median Home Value | $1,088,700 ▲ 291% above avg ↑ 24% since 2019 |
| Home/Income Ratio | 8.9x (nat avg ~3.5x) |
| Median Rent | $2,799/mo ↑ 25% since 2019 |
| Total Units | 16,132 |
| Vacant Units | 1,893 |
| Avg HH Size | 2.05 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 16,132 |
|---|---|
| Vacant | 1,893 |
| Owner Occupied | 40.9% |
| Renter Occupied | 59.1% |
| Avg HH Size | 2.05 |
ZIP code 02138 is located in Cambridge, Massachusetts, within Middlesex County. With a population of 38,077, this is a highly populated ZIP code with a young community — the median age is 28.7 years. Economically, 02138 is a upper-middle-income ZIP code: the median household income of $122,040 is significantly above the national average.
Real estate in ZIP code 02138 represents among the most expensive housing markets in the country. The median home value of $1,088,700 is more than double the national average. Renters can expect to pay around $2,799 per month in median rent. The area has a relatively balanced mix of owners (40.9%) and renters (59.1%). Median home values have increased by 24% since 2019.
The population of 02138 is majority White (60.00%). Residents are highly educated — 86.3% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 9.7%. Household income has grown by 16% since 2019.
The unemployment rate in 02138 stands at 3.0%, which is below the national average. A notably high share of workers — 29% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 24%.
Overall, ZIP code 02138 in Cambridge, MA is characterized as upper-middle-income, highly educated, and a young community. With 38,077 residents, a median household income of $122,040, and a median home value of $1,088,700, it offers a clear picture of life in this part of Massachusetts.