What city is 02420 in?

02420 is a Lexington, MA mailing address. By land area, 94% lies inside Lexington and 6% lies inside Burlington.

What is the population of 02420?

About 16,215 people (±916), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 15,502.

What is the median household income in 02420?

$245,031 (±$20,096), compared with $103,960 for Massachusetts as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 02420?

18 USPS carrier routes with 5,535 residential and 526 business mailboxes (6,058 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 02420?

The closest, measured center to center: 02421 (1.8 mi, Lexington), 01803 (3.2 mi, Burlington), 01731 (3.4 mi, Hanscom AFB), 02476 (3.7 mi, Arlington), 01801 (3.8 mi, Woburn) and 01890 (3.8 mi, Winchester).

02420 ZIP Code, Lexington, MA

02420 is a ZIP code in Lexington, Massachusetts in Middlesex County. It covers 7.0 square miles of land. The closest ZIP codes are 02421, 01803 and 01731. 16,215 people live here in 5,653 households. At about 2,304 people per square mile it has suburban density, and most homes are owner-occupied (86%). Median household income is $245,031, well above the Massachusetts median of $103,960; 43% of households have children under 18.

Quick facts

Mailing city: Lexington, MA
County: Middlesex County
Land area: 7.0 sq mi
Population: 16,215
Median household income: $245,031
Carrier routes: 18 (5,535 homes)

Key figures

Measure	Value
Residents	16,215
Households	5,653
Median household income	$245,031
Income per person	$117,095
Median age	45.9
Homeowners	86.0%
Median home value	$1,200,300
Median rent	$2,801
Bachelor's degree or higher	85.6%
Average commute (minutes)	30.1
Households with kids under 18	43.2%
Moved in the past year	11.7%
Below the poverty line	2.8%
Broadband internet	98.2%
Speak a non-English language at home	39.7%

Household income

% of households	Value
<$10K	1.7%
$10–15K	0.3%
$15–25K	2.8%
$25–35K	1.5%
$35–50K	3.5%
$50–75K	2.4%
$75–100K	4.5%
$100–150K	12.3%
$150–200K	10.3%
$200K+	60.7%

Age

% of all residents	Value
<10	12.0%
10–19	15.5%
20–24	3.4%
25–34	5.0%
35–44	12.7%
45–54	19.2%
55–64	11.8%
65–74	13.0%
75+	7.4%

Tenure

% of housing units	Value
Owned, with mortgage	52.2%
Owned outright	31.3%
Rented	13.2%
Vacant	3.3%

Type of building

% of housing units	Value
Detached house	78.9%
Townhome	9.5%
2–4 units	5.4%
5–19 units	2.6%
20+ units	3.6%
Mobile / other	0.0%

Businesses in 02420

504 business establishments with 4,413 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 98
Professional, Scientific, and Technical Services: 86
Other Services (except Public Administration): 60
Retail Trade: 47
Accommodation and Food Services: 47
Finance and Insurance: 34
Real Estate and Rental and Leasing: 26
Construction: 21

EDDM carrier routes

02420 has 18 USPS carrier routes with 5,535 residential and 526 business mailboxes. Open the EDDM route map.

Carrier routes in 02420

02420 has 18 USPS carrier routes (18 city (C)) with 5,535 residential and 526 business mailboxes. Routes range from 105 homes (C031) to 430 homes (C002); the median route has 298 homes. The Census counted 5,653 households in 02420 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	4
250–499	14
500–749	0
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 02420 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C044 — USPS business mailboxes 165, 206 homes
Route C043 — USPS business mailboxes 102, 213 homes
Route C023 — USPS business mailboxes 92, 315 homes
Route C026 — USPS business mailboxes 66, 261 homes
Route C010 — USPS business mailboxes 33, 375 homes

Select these 5 routes on the route map

Every carrier route in 02420

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C002	City	430	6	$200,001+	—	—	—
C005	City	270	4	$175,118	—	—	—
C007	City	428	19	$200,001+	—	—	—
C010	City	375	33	$200,001+	—	—	—
C011	City	359	2	$200,001+	—	—	—
C016	City	296	4	$200,001+	—	—	—
C019	City	238	0	$200,001+	—	—	—
C020	City	407	4	$200,001+	—	—	—
C022	City	277	1	$200,001+	—	—	—
C023	City	315	92	$200,001+	—	—	—
C024	City	300	10	$200,001+	—	—	—
C026	City	261	66	$200,001+	—	—	—
C030	City	366	4	$200,001+	—	—	—
C031	City	105	11	$163,839	—	—	—
C033	City	416	2	$200,001+	—	—	—
C038	City	273	1	$200,001+	—	—	—
C043	City	213	102	$200,001+	—	—	—
C044	City	206	165	$200,001+	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 02420 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

02421 — Lexington CDP, MA (1.8 mi)
01803 — Burlington CDP, MA (3.2 mi)
01731 — Hanscom AFB CDP, MA (3.4 mi)
02476 — Arlington CDP, MA (3.7 mi)
01801 — Woburn city, MA (3.8 mi)
01890 — Winchester CDP, MA (3.8 mi)
02474 — Arlington CDP, MA (4.1 mi)
01730 — Burlington CDP, MA (4.3 mi)

Areas that include 02420

Lexington, MA ZIP codes — 3 ZIP codes
Middlesex County ZIP codes — 83 ZIP codes
Massachusetts ZIP code data

Where it ranks

Mail every home in 02420

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 02420, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 02420 in?: 02420 is a Lexington, MA mailing address. By land area, 94% lies inside Lexington and 6% lies inside Burlington.
What county is 02420 in?: 02420 is in Middlesex County.
What is the population of 02420?: About 16,215 people (±916), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 15,502.
What is the median household income in 02420?: $245,031 (±$20,096), compared with $103,960 for Massachusetts as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 02420?: 18 USPS carrier routes with 5,535 residential and 526 business mailboxes (6,058 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 02420?: The closest, measured center to center: 02421 (1.8 mi, Lexington), 01803 (3.2 mi, Burlington), 01731 (3.4 mi, Hanscom AFB), 02476 (3.7 mi, Arlington), 01801 (3.8 mi, Woburn) and 01890 (3.8 mi, Winchester).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.