06488 ZIP Code, Southbury, CT

06488 is a ZIP code in Southbury, Connecticut in New Haven County. It covers 39 square miles of land. The closest ZIP codes are 06482, 06478 and 06798. 20,071 people live here in 8,424 households. With about 514 people per square mile it is lightly settled, and most homes are owner-occupied (88%). Median household income is $112,887, above the Connecticut median of $95,781; the median age is 54.2, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents20,071
Households8,424
Median household income$112,887
Income per person$67,509
Median age54.2
Homeowners88.2%
Median home value$411,600
Median rent$1,935
Bachelor's degree or higher51.8%
Average commute (minutes)29.9
Households with kids under 1821.8%
Moved in the past year8.9%
Below the poverty line3.4%
Broadband internet93.2%
Speak a non-English language at home11.0%

Household income

% of householdsValue
<$10K2.1%
$10–15K1.2%
$15–25K6.0%
$25–35K5.0%
$35–50K8.7%
$50–75K12.7%
$75–100K10.9%
$100–150K13.5%
$150–200K14.2%
$200K+25.6%

Age

% of all residentsValue
<108.9%
10–199.8%
20–244.4%
25–348.0%
35–4410.3%
45–549.9%
55–6415.6%
65–7415.9%
75+17.1%

Tenure

% of housing unitsValue
Owned, with mortgage47.0%
Owned outright36.3%
Rented10.8%
Vacant5.9%

Type of building

% of housing unitsValue
Detached house57.9%
Townhome20.7%
2–4 units12.7%
5–19 units6.0%
20+ units2.4%
Mobile / other0.2%

Businesses in 06488

500 business establishments with 5,981 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

06488 has 18 USPS carrier routes with 8,841 residential and 588 business mailboxes. Open the EDDM route map.

Carrier routes in 06488

06488 has 18 USPS carrier routes (7 city (C), 11 rural (R)) with 8,841 residential and 588 business mailboxes. Routes range from 190 homes (R010) to 616 homes (R008); the median route has 521 homes. The Census counted 8,424 households in 06488 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–4992
500–74914
750–9990
1,000–1,4990
1,500+0

Best routes in 06488 for…

Most businesses

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

  1. Route C008 — USPS business mailboxes 406, 208 homes
  2. Route R007 — USPS business mailboxes 46, 531 homes
  3. Route R006 — USPS business mailboxes 35, 521 homes
  4. Route C001 — USPS business mailboxes 31, 540 homes
  5. Route R005 — USPS business mailboxes 22, 553 homes

Select these 5 routes on the route map

Every carrier route in 06488

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City54031$68,157———
C002City5063$68,157———
C004City5119$68,157———
C005City4970$68,157———
C006City5312$79,954———
C007City4750$68,157———
C008City208406$68,157———
R001Rural5079$176,066———
R002Rural5361$158,064———
R003Rural5470$166,803———
R004Rural5053$152,095———
R005Rural55322$169,764———
R006Rural52135$166,803———
R007Rural53146$169,764———
R008Rural6163$152,095———
R009Rural5206$106,972———
R010Rural1908$152,095———
R011Rural5474$176,066———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 06488 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 06488

Where it ranks

Mail every home in 06488

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) 06488, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 06488 in?
06488 is a Southbury, CT mailing address. By land area, 7% lies inside Heritage Village; the rest is outside any Census-defined city or community.
What county is 06488 in?
06488 is in New Haven County.
What is the population of 06488?
About 20,071 people (±23), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 19,896.
What is the median household income in 06488?
$112,887 (±$8,440), 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 06488?
18 USPS carrier routes with 8,841 residential and 588 business mailboxes (9,418 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 06488?
The closest, measured center to center: 06482 (4.7 mi, Sandy Hook), 06478 (4.8 mi), 06798 (6 mi, Woodbury Center), 06762 (6.5 mi, Naugatuck borough, CT), 06783 (6.5 mi) and 06470 (7.2 mi, Newtown borough, CT).

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