| ZIP Code | 02421 |
|---|---|
| City | Lexington |
| State | Massachusetts (MA) |
| County | Middlesex County |
| Area Code | 339/781 |
| Elevation | 215 ft |
| Latitude | 42.438547 |
|---|---|
| Longitude | -71.239573 |
| Timezone | New York (DST) |
| FIPS | 25017 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 47.7 yrs ↑ 3% since 2019 |
|---|---|
| Avg Household Size | 2.60 |
| Below Poverty | 6.0% ▼ 40% below avg |
| College Grads | 87.8% ▲ 127% above avg |
| Unemployment | 2.2% ▼ 55% below avg |
| No HS Diploma | 20 (0.2%) |
| HS Graduate | 653 (6.3%) |
| Some College | 247 (2.4%) |
| Associates | 339 (3.3%) |
| Bachelors | 368 (3.6%) |
| Graduate Degree | 8,666 (84.2%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $212,843 ▲ 179% above avg ↑ 19% since 2019 |
|---|---|
| Median Home Value | $1,147,700 ▲ 312% above avg ↑ 29% since 2019 |
| Home/Income Ratio | 5.4x (nat avg ~3.5x) |
| Median Rent | $2,847/mo ↑ 11% since 2019 |
| Total Units | 6,913 |
| Vacant Units | 148 |
| Avg HH Size | 2.60 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 6,913 |
|---|---|
| Vacant | 148 |
| Owner Occupied | 76.3% |
| Renter Occupied | 23.7% |
| Avg HH Size | 2.60 |
ZIP code 02421 is located in Lexington, Massachusetts, within Middlesex County. With a population of 17,798, this is a moderately populated ZIP code with a mature community — the median age is 47.7 years. Economically, 02421 is a affluent ZIP code: the median household income of $212,843 is more than double the national average.
Real estate in ZIP code 02421 represents among the most expensive housing markets in the country. The median home value of $1,147,700 is more than double the national average. Renters can expect to pay around $2,847 per month in median rent. Homeownership is strong here — 76.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 29% since 2019.
The population of 02421 is majority White (55.76%). Residents are highly educated — 87.8% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 6.0%. Household income has grown by 19% since 2019.
The unemployment rate in 02421 stands at 2.2%, which is well below the national average. A notably high share of workers — 34% — 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 54%.
Overall, ZIP code 02421 in Lexington, MA is characterized as affluent, highly educated, a mature community, and predominantly owner-occupied. With 17,798 residents, a median household income of $212,843, and a median home value of $1,147,700, it offers a clear picture of life in this part of Massachusetts.