01230 ZIP Code, Great Barrington, MA

01230 is a ZIP code in Great Barrington, Massachusetts in Berkshire County. It covers 97 square miles of land. The closest ZIP codes are 01244, 01245 and 01257. 8,826 people live here in 3,690 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (73%). Median household income is $86,694, below the Massachusetts median of $103,960; the median age is 50.6, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents8,826
Households3,690
Median household income$86,694
Income per person$57,985
Median age50.6
Homeowners72.7%
Median home value$527,300
Median rent$1,357
Bachelor's degree or higher52.3%
Average commute (minutes)26.3
Households with kids under 1818.0%
Moved in the past year13.9%
Below the poverty line8.0%
Broadband internet90.7%
Speak a non-English language at home10.5%

Household income

% of householdsValue
<$10K5.7%
$10–15K0.6%
$15–25K4.1%
$25–35K8.1%
$35–50K10.5%
$50–75K14.0%
$75–100K16.0%
$100–150K13.1%
$150–200K8.6%
$200K+19.3%

Age

% of all residentsValue
<105.7%
10–1910.6%
20–249.2%
25–347.7%
35–4411.1%
45–5411.1%
55–6415.2%
65–7415.9%
75+13.4%

Tenure

% of housing unitsValue
Owned, with mortgage32.9%
Owned outright21.7%
Rented19.4%
Vacant26.0%

Type of building

% of housing unitsValue
Detached house80.7%
Townhome4.2%
2–4 units5.9%
5–19 units6.4%
20+ units2.8%
Mobile / other0.0%

Businesses in 01230

423 business establishments with 4,849 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

01230 has 11 USPS carrier routes with 4,029 residential and 597 business mailboxes. Open the EDDM route map.

Carrier routes in 01230

01230 has 11 USPS carrier routes (5 city (C), 5 rural (R), 1 highway contract (H)) with 4,029 residential and 597 business mailboxes. Routes range from 98 homes (C006) to 508 homes (R002); the median route has 407 homes. The Census counted 3,690 households in 01230 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–4997
500–7492
750–9990
1,000–1,4990
1,500+0

Best routes in 01230 for…

Most businesses

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

  1. Route C005 — USPS business mailboxes 199, 367 homes
  2. Route C004 — USPS business mailboxes 161, 467 homes
  3. Route C003 — USPS business mailboxes 69, 407 homes
  4. Route H065 — USPS business mailboxes 42, 212 homes
  5. Route R005 — USPS business mailboxes 41, 280 homes

Select these 5 routes on the route map

Every carrier route in 01230

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C002City44622$40,657———
C003City40769$105,826———
C004City467161$40,657———
C005City367199$66,334———
C006City982$74,630———
H065Highway contract21242$101,201———
R001Rural25710$85,595———
R002Rural50838$82,609———
R003Rural5015$101,201———
R004Rural4868$101,201———
R005Rural28041$105,826———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 01230 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 01230

Where it ranks

Mail every home in 01230

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) 01230, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 01230 in?
01230 is a Great Barrington, MA mailing address. By land area, 1% lies inside Great Barrington; the rest is outside any Census-defined city or community.
What county is 01230 in?
01230 is in Berkshire County.
What is the population of 01230?
About 8,826 people (±513), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 8,907.
What is the median household income in 01230?
$86,694 (±$9,029), 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 01230?
11 USPS carrier routes with 4,029 residential and 597 business mailboxes (4,632 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 01230?
The closest, measured center to center: 01244 (4.5 mi), 01245 (5.6 mi), 01257 (6.5 mi), 01260 (6.6 mi), 01222 (7.6 mi) and 01236 (7.7 mi, Housatonic).

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