ZIP code 02421
Where is ZIP code 02421?
Lexington, Massachusetts
Middlesex County · Standard ZIP code
ZIP code 02421 belongs to Lexington, Massachusetts in Middlesex County. 02421 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 339, 617, 781 and 857. About 18,080 people live in the 02421 area, where the median household income is $227,813. The closest ZIP codes are 02420 (Lexington, 1.1 mi northeast), 02475 (Arlington Heights, 2.8 mi southeast) and 02451 (Waltham, 3.2 mi south).
| ZIP code | 02421 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Lexington |
| State | Massachusetts (MA) |
| County | Middlesex County |
| Time zone | Eastern Time · now |
| Area codes | 339, 617, 781, 857 |
| Coordinates | 42.4426, -71.2265 map |
| 3-digit prefix | 024 |
Population and income in 02421
| Population | 18,080 · higher than 73% of Massachusetts ZIP codes |
|---|---|
| People per square mile | 1,889 · higher than 69% of Massachusetts ZIP codes |
| Median age | 48.2 years · higher than 71% of Massachusetts ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $227,813 · higher than 98% of Massachusetts ZIP codes |
| Income per person | $112,662 |
| Below the poverty line | 6.4% |
| Bachelor’s degree or higher | 83% of adults 25+ |
| Median home value | $1,205,700 · higher than 95% of Massachusetts ZIP codes |
| Median rent | $2,948 a month |
| Housing units | 6,903 |
| Households | 6,824 (2.61 people on average) |
| Owners / renters | 76% / 24% |
| Land area | 9.57 sq mi (plus 0.16 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 02421. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 02421
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 02420 | Lexington, MA | 1.1 mi NE | Standard |
| 02475 | Arlington Heights, MA | 2.8 mi SE | PO Box only |
| 02451 | Waltham, MA | 3.2 mi S | Standard |
| 02476 | Arlington, MA | 3.2 mi SE | Standard |
| 01731 | Hanscom AFB, MA | 3.3 mi NW | Standard |
| 02452 | Waltham, MA | 3.4 mi S | Standard |
| 01730 | Bedford, MA | 3.9 mi NW | Standard |
| 02474 | Arlington, MA | 3.9 mi SE | Standard |
| 02478 | Belmont, MA | 4 mi SE | Standard |
| 01890 | Winchester, MA | 4.3 mi E | Standard |
| 02479 | Waverley, MA | 4.4 mi SE | PO Box only |
| 01801 | Woburn, MA | 4.5 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 02421 or measure the distance to another ZIP code.
How to address mail to 02421
123 MAIN ST
LEXINGTON MA 02421
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (02421-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Lexington, MA
All Lexington ZIP codes with population and income →
Questions
- What city is ZIP code 02421?
- 02421 is a Lexington, Massachusetts ZIP code.
- What county is 02421 in?
- ZIP code 02421 is in Middlesex County, Massachusetts.
- What time zone is ZIP code 02421 in?
- 02421 is in the Eastern Time zone (America/New_York).
- What area code is 02421?
- Phone numbers in ZIP code 02421 use area codes 339, 617, 781 and 857.
- What is the population of ZIP code 02421?
- About 18,080 people live in ZIP code 02421, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 02421?
- The median household income in 02421 is $227,813 a year, higher than 98% of Massachusetts ZIP codes.
- What ZIP codes are near 02421?
- The nearest ZIP codes to 02421 are 02420 (Lexington, 1.1 miles), 02475 (Arlington Heights, 2.8 miles), 02451 (Waltham, 3.2 miles) and 02476 (Arlington, 3.2 miles).