Lexington, MA ZIP Codes
3 ZIP codes serve Lexington, Massachusetts: 02421, 02420 and 01731. Together they are home to 36,405 residents in 13,157 households. Median household income ranges from $104,688 in 01731 to $245,031 in 02420.
Lexington Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 34,295 |
| Households | 12,477 |
| Median household income | $238,444 |
| Median home value | $1,203,100 |
| Median age | 47.3 |
| Median rent | $2,891 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 36,405 |
| Households (sum of ZIP codes) | 13,157 |
| Median household income, range across ZIP codes | $104,688 (01731) to $245,031 (02420) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $228,847 |
| Homeowners | 76.3% |
| Households with kids under 18 | 41.8% |
| Moved in the past year | 12.3% |
| Carrier routes in EDDM2GO's route library | 41 routes, 13,330 homes (3 of 3 ZIP codes) |
Top facts
- Highest median household income in Lexington: 02420 ($245,031)
- Most residents: 02421 (18,080 people)
- Highest homeownership: 02420 (86.0% own their home)
- Most households with kids: 01731 (54.9% of households)
- Most new movers: 01731 (32.2% moved in last year)
- Youngest median age: 01731 (25.0 years)
- Highest median home value: 02421 ($1,205,700)
Every ZIP code in Lexington
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 02421 | Lexington | 18,080 | 6,824 | $227,813 | $1,205,700 | 75.9% | 39.4% | 10.6% | 21 | 7,590 | 100% of its land; mailing city |
| 02420 | Lexington | 16,215 | 5,653 | $245,031 | $1,200,300 | 86.0% | 43.2% | 11.7% | 18 | 6,058 | 94% of its land; mailing city |
| 01731 | Hanscom Afb | 2,110 | 680 | $104,688 | — | 0.0% | 54.9% | 32.2% | 2 | 734 | 11% of its land |
A ZIP code is listed for Lexington when at least 10% of its land lies inside the Lexington Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Lexington. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Lexington.
Counties
- Middlesex County — 83 ZIP codes
Price a mailing to Lexington ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Lexington, MA?
- 02421, 02420 and 01731. A ZIP code is listed for Lexington when at least 10% of its land lies inside the Lexington Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Lexington.
- What is the population of Lexington, MA?
- The Census Bureau counts 34,295 residents inside Lexington Census-designated place (ACS 2020–2024). The 3 ZIP codes that serve Lexington hold 36,405 residents in all.
- What is the median household income in Lexington, MA?
- $238,444 inside Lexington Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $104,688 to $245,031.
- Which Lexington ZIP code has the highest median household income?
- 02420, at $245,031, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Lexington, MA?
- For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 41 carrier routes reaching 13,330 residential and 1,047 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.