Lexington, MA · standard
ZIP Code 02420
Middlesex County, Massachusetts - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 14,052
- 824/sq mi High-density area
- $245,031
- Median income Above-median income area
- $1,200,300
- Median home value Above-median home value
- 85.6%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Lexington pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.
- Top 1%
- household income, US ZIPs
- Top 1%
- home value, US ZIPs
- 824
- people per sq mi
- 86%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 02420 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 02420 (Lexington, MA) rose +4.5% from 2023 to 2024. The all-transactions index moved from 249.5 in 2023 to 260.7 in 2024 (2000 = 100).
ZIP code 02420 is a mid-sized community (a standard USPS delivery area) in Lexington, Middlesex County, Massachusetts, home to 14,052 residents across 17.1 square miles, a density of 824 people per square mile, in the New York time zone.
ZIP 02420 skews affluent, with a median household income of $245,031 (112% above the average Massachusetts ZIP), while per-capita income is $117,095. Both reported hardship measures are comparatively low in absolute terms: poverty is 2.8% and unemployment is 3.5%. Housing is both higher-cost and owner-heavy: median home value is $1,200,300 (100% above the average Massachusetts ZIP), while 86.0% of occupied homes are owner-occupied and median rent is $2,801.
This is a highly-educated ZIP: 85.6% of adults hold a bachelor's degree or higher, the median age is 45.9, and the average commute is 30 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Middlesex County, so 02420 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 02420
Top 5 sectors by establishment count in Lexington, MA
Which industries have the most business establishments in ZIP 02420.
- Health care and social assistance
Health care and social assistance
98 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
86 establishments
- Other services (except public administration)
Other services (except public administration)
60 establishments
- Retail trade
Retail trade
47 establishments
- Accommodation and food services
Accommodation and food services
47 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 02420, Lexington, 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
14,052
Population
17.1
Area (sq mi)
824
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 02420?
45.9
Median Age
48.2%
Male
51.8%
Female
30.9%
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?
$245,031
Median Household Income
+112% vs state ZIP avg
$117,095
Per Capita Income
2.8%
Poverty Rate
3.5%
Unemployment Rate
30.1 min
Mean Commute Time
How ZIP 02420 ranks among Massachusetts ZIPs
Lexington, 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)
$245,031 Top 1% higher than 99% 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
5,851housing units
5,851
Total Housing Units
5,653
Occupied Units
198
Vacant Units
2.84
Avg Household Size
Occupancy Type
$1,200,300
Median Home Value
+100% vs state ZIP avg
$2,801
Median Rent
1963
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
+4.5%
YoY Change (2024)
261
HPI Index (2000 = 100)
+161%
Total Change Since 2000
Home values in ZIP 02420 have increased 4.5% over the past year (2024). Since 2000, this ZIP has seen +161% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | -4.8% | 212 |
| 2021 | +1.0% | 214 |
| 2022 | +14.1% | 245 |
| 2023 | +2.0% | 250 |
| 2024 | +4.5% | 261 |
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 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 504 business establishments in ZIP 02420, employing approximately 4,413 people with a combined annual payroll of $281,214,000.
504
Businesses
4,413
Employees
$281.2M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 98 | 19.4% |
| Professional, scientific, and technical services | 86 | 17.1% |
| Other services (except public administration) | 60 | 11.9% |
| Retail trade | 47 | 9.3% |
| Accommodation and food services | 47 | 9.3% |
| Finance and insurance | 34 | 6.8% |
| Real estate and rental and leasing | 26 | 5.2% |
| Construction | 21 | 4.2% |
| Educational services | 20 | 4.0% |
| Administrative and support and waste management and remediation services | 17 | 3.4% |
| Arts, entertainment, and recreation | 15 | 3.0% |
| Information | 12 | 2.4% |
| Wholesale trade | 8 | 1.6% |
| Manufacturing | 7 | 1.4% |
| Transportation and warehousing | 3 | 0.6% |
| 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 02420 vs 02421 →
ZIP 02420 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 01801
Woburn (01801)
38,903 residents
- 02474
Arlington (02474)
26,312 residents
- 02478
Belmont (02478)
24,664 residents
- 01803
Burlington (01803)
24,487 residents
- 01890
Winchester (01890)
21,382 residents
- 02451
Waltham (02451)
17,426 residents
- 02421
Lexington (02421)
17,342 residents
- 02476
Arlington (02476)
16,532 residents
- 02452 14,238
Waltham (02452)
14,238 residents
What this shows Among its immediate neighbors, ZIP 02420 ranks #0 by population - useful context the national average alone can't give.
ZIP 02420 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 02420
Lexington (02420)
$245,031 median income
- 01890
Winchester (01890)
$230,198 median income
- 02421
Lexington (02421)
$227,813 median income
- 02478
Belmont (02478)
$183,137 median income
- 02476
Arlington (02476)
$151,131 median income
- 02474
Arlington (02474)
$150,560 median income
- 01803
Burlington (01803)
$146,436 median income
- 02451
Waltham (02451)
$122,335 median income
- 02452
Waltham (02452)
$118,431 median income
What this shows By household income, ZIP 02420 ranks the highest of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 02421 | Lexington, MA | 17,342 | 1.7 mi |
| 01803 | Burlington, MA | 24,487 | 3.2 mi |
| 01731 | Hanscom Afb, MA | 1,396 | 3.2 mi |
| 02452 | Waltham, MA | 14,238 | 4.3 mi |
| 01890 | Winchester, MA | 21,382 | 3.6 mi |
| 02476 | Arlington, MA | 16,532 | 3.5 mi |
| 01801 | Woburn, MA | 38,903 | 3.8 mi |
| 02474 | Arlington, MA | 26,312 | 4.0 mi |
| 02478 | Belmont, MA | 24,664 | 4.6 mi |
| 02451 | Waltham, MA | 17,426 | 4.5 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 02420, 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 (14,052 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Middlesex County
Related Areas
Frequently Asked Questions
What county is ZIP code 02420 in?
ZIP code 02420 (Lexington) is located in Middlesex County, Massachusetts. Middlesex County contains multiple ZIP codes, see the full list at /counties/middlesex-ma.
What is the population of ZIP code 02420?
ZIP code 02420 in Lexington, MA has a population of 14,052 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 02420?
The median household income in ZIP 02420 is $245,031, which is 221% above the national average of $76,288.
What is the average home value in ZIP 02420?
The median home value in ZIP 02420 is $1,200,300, which is 332% above the national average of $278,155.
What is the demographic makeup of ZIP 02420?
The largest racial group in ZIP 02420 is White at 56.2%. Hispanic or Latino residents make up 4.0% of the population.
How many businesses are in ZIP code 02420?
ZIP code 02420 has 504 business establishments employing approximately 4,413 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 02420?
The top industries by establishment count in ZIP 02420 are: Health care and social assistance (98), Professional, scientific, and technical services (86), Other services (except public administration) (60). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 02420?
According to the FHFA House Price Index, home values in ZIP 02420 increased by 4.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 161%. 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 02420?
In ZIP code 02420, 89.5% of residents aged 25+ have a high school diploma or higher, and 85.6% 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 02420?
The mean commute time for workers in ZIP code 02420 is 30.1 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 02420?
In ZIP code 02420, approximately 86.0% of occupied housing units are owner-occupied and 14.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 02420?
The poverty rate in ZIP code 02420 is 2.8% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 02420's numbers, next.
- See how ZIP 02420 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Lexington, MA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.