06037 ZIP Code, Berlin, CT

06037 is a ZIP code in Berlin, Connecticut in Hartford County. It covers 25 square miles of land. The closest ZIP codes are 06023, 06052 and 06051. 19,173 people live here in 7,830 households. With about 753 people per square mile it is lightly settled, and most homes are owner-occupied (83%). Median household income is $116,042, above the Connecticut median of $95,781; the median age is 48.2, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents19,173
Households7,830
Median household income$116,042
Income per person$56,638
Median age48.2
Homeowners82.5%
Median home value$377,100
Median rent$1,405
Bachelor's degree or higher44.7%
Average commute (minutes)21
Households with kids under 1827.5%
Moved in the past year5.3%
Below the poverty line3.5%
Broadband internet93.8%
Speak a non-English language at home16.2%

Household income

% of householdsValue
<$10K1.6%
$10–15K0.7%
$15–25K1.9%
$25–35K4.9%
$35–50K10.7%
$50–75K11.0%
$75–100K12.0%
$100–150K21.9%
$150–200K14.4%
$200K+20.8%

Age

% of all residentsValue
<109.9%
10–1910.8%
20–246.7%
25–348.3%
35–4411.6%
45–5411.8%
55–6417.4%
65–7412.7%
75+10.6%

Tenure

% of housing unitsValue
Owned, with mortgage43.5%
Owned outright36.9%
Rented16.6%
Vacant2.9%

Type of building

% of housing unitsValue
Detached house79.5%
Townhome1.4%
2–4 units10.7%
5–19 units4.2%
20+ units3.5%
Mobile / other0.7%

Businesses in 06037

568 business establishments with 10,551 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

06037 has 20 USPS carrier routes with 8,085 residential and 718 business mailboxes. Open the EDDM route map.

Carrier routes in 06037

06037 has 20 USPS carrier routes (14 city (C), 6 rural (R)) with 8,085 residential and 718 business mailboxes. Routes range from 125 homes (R006) to 613 homes (R005); the median route has 429 homes. The Census counted 7,830 households in 06037 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2493
250–49913
500–7494
750–9990
1,000–1,4990
1,500+0

Best routes in 06037 for…

Most businesses

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

  1. Route C015 — USPS business mailboxes 184, 322 homes
  2. Route C010 — USPS business mailboxes 177, 183 homes
  3. Route C008 — USPS business mailboxes 141, 429 homes
  4. Route C009 — USPS business mailboxes 49, 522 homes
  5. Route R004 — USPS business mailboxes 48, 463 homes

Select these 5 routes on the route map

Every carrier route in 06037

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City3441$121,500———
C002City52217$80,341———
C003City2448$165,006———
C004City4298$116,098———
C006City4281$102,436———
C007City3629$80,341———
C008City429141$93,985———
C009City52249$81,635———
C010City183177$80,341———
C011City41717$165,006———
C012City4029$80,341———
C013City48514$121,500———
C014City3644$93,985———
C015City322184$102,436———
R001Rural5058$172,267———
R002Rural42921$131,824———
R003Rural4970$161,033———
R004Rural46348$172,267———
R005Rural6132$172,267———
R006Rural1250$131,824———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 06037 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

Areas that include 06037

Where it ranks

Mail every home in 06037

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) 06037, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 06037 in?
06037 is a Berlin, CT mailing address. By land area, 24% lies inside Kensington; the rest is outside any Census-defined city or community.
What county is 06037 in?
06037 is in Hartford County.
What is the population of 06037?
About 19,173 people (±360), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 18,855.
What is the median household income in 06037?
$116,042 (±$11,072), compared with $95,781 for Connecticut as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 06037?
20 USPS carrier routes with 8,085 residential and 718 business mailboxes (8,814 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 06037?
The closest, measured center to center: 06023 (3.1 mi), 06052 (3.7 mi, New Britain), 06051 (4.2 mi, New Britain), 06450 (4.8 mi, Meriden), 06489 (4.8 mi) and 06451 (5 mi, Meriden).

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