PlainZIP

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
$245,031
Median income
$1,200,300
Median home value
85.6%
Bachelor's or higher

The verdict

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.

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 Massachusetts average), while per-capita income is $117,095. Local economic indicators show a 2.8% poverty rate alongside 3.5% unemployment. Housing costs here run $1,200,300 for a typical home value (100% above the state average), with rent averaging $2,801 a month; 86.0% of homes are owner-occupied.

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. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Middlesex County, so you can benchmark 02420 against its immediate geography rather than a national average alone.

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.

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 · ZIP Code Business Patterns (ZBP) As of 2023

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 02420?

45.9

Median Age

48.2%

Male

51.8%

Female

30.9%

Foreign-Born

White 56.2%
African American 2.1%
Asian 31.7%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.7%
Hispanic or Latino 4.0%

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

$117,095

Per Capita Income

2.8%

Poverty Rate

3.5%

Unemployment Rate

30.1 min

Mean Commute Time

How ZIP 02420 ranks nationally

Lexington, MA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$245,031 Top 1% higher than 99% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). Below this entry. $200,000–$220,000: 324 US ZIPs (1%). This entry sits in this band. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US 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?

High School Graduate or Higher 89.5%
Bachelor's Degree or Higher 85.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

5,851

Total Housing Units

5,653

Occupied Units

198

Vacant Units

2.84

Avg Household Size

Occupancy Type

Owner 86.0%
Renter 14.0%

$1,200,300

Median Home Value

+100% vs state

$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.

residents

What this shows Among its immediate neighbors, ZIP 02420 ranks #0 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 02420 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
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

More ZIP Codes in Middlesex County

02148 standard
Malden, MA
Pop: 59,503
02155 standard
Medford, MA
Pop: 57,964
02149 standard
Everett, MA
Pop: 41,550
01801 standard
Woburn, MA
Pop: 38,903
01752 standard
Marlborough, MA
Pop: 38,499
01702 standard
Framingham, MA
Pop: 37,206

Related Areas

Middlesex County Lexington, MA Massachusetts

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.

Read our methodology to see how this data is sourced, computed, and verified.