What city is 01830 in?

01830 is a Haverhill, MA mailing address. By land area, 100% lies inside Haverhill.

What is the population of 01830?

About 26,530 people (±1,407), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 27,553.

What is the median household income in 01830?

$78,571 (±$9,844), 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 01830?

19 USPS carrier routes with 11,039 residential and 652 business mailboxes (11,696 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 01830?

The closest, measured center to center: 01834 (3.5 mi), 01860 (3.6 mi), 01835 (3.7 mi, Haverhill), 01832 (4 mi, Haverhill), 03865 (4 mi) and 01985 (4.5 mi).

01830 ZIP Code, Haverhill, MA

01830 is a ZIP code in Haverhill, Massachusetts in Essex County. It covers 14 square miles of land. The closest ZIP codes are 01834, 01860 and 01835. 26,530 people live here in 10,650 households. At about 1,913 people per square mile it has suburban density, and owners and renters are mixed (58% own). Median household income is $78,571, below the Massachusetts median of $103,960.

Quick facts

Mailing city: Haverhill, MA
County: Essex County
Land area: 14 sq mi
Population: 26,530
Median household income: $78,571
Carrier routes: 19 (11,039 homes)

Key figures

Measure	Value
Residents	26,530
Households	10,650
Median household income	$78,571
Income per person	$43,193
Median age	39.8
Homeowners	57.8%
Median home value	$467,000
Median rent	$1,644
Bachelor's degree or higher	32.6%
Average commute (minutes)	28.7
Households with kids under 18	28.5%
Moved in the past year	12.1%
Below the poverty line	14.7%
Broadband internet	90.9%
Speak a non-English language at home	25.7%

Household income

% of households	Value
<$10K	5.2%
$10–15K	4.5%
$15–25K	6.2%
$25–35K	6.6%
$35–50K	11.2%
$50–75K	15.3%
$75–100K	9.8%
$100–150K	17.1%
$150–200K	10.0%
$200K+	14.1%

Age

% of all residents	Value
<10	10.5%
10–19	13.2%
20–24	5.7%
25–34	13.5%
35–44	13.3%
45–54	12.2%
55–64	13.8%
65–74	9.8%
75+	7.8%

Tenure

% of housing units	Value
Owned, with mortgage	37.7%
Owned outright	16.6%
Rented	38.9%
Vacant	6.7%

Type of building

% of housing units	Value
Detached house	39.8%
Townhome	7.9%
2–4 units	26.1%
5–19 units	11.2%
20+ units	15.0%
Mobile / other	0.0%

Businesses in 01830

531 business establishments with 6,603 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 96
Accommodation and Food Services: 69
Other Services (except Public Administration): 66
Construction: 61
Retail Trade: 60
Professional, Scientific, and Technical Services: 50
Administrative and Support and Waste Management and Remediation Services: 27
Finance and Insurance: 24

EDDM carrier routes

01830 has 19 USPS carrier routes with 11,039 residential and 652 business mailboxes. Open the EDDM route map.

Carrier routes in 01830

01830 has 19 USPS carrier routes (17 city (C), 2 rural (R)) with 11,039 residential and 652 business mailboxes. Routes range from 143 homes (C047) to 964 homes (C027); the median route has 549 homes. The Census counted 10,650 households in 01830 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	4
500–749	12
750–999	2
1,000–1,499	0
1,500+	0

Best routes in 01830 for…

Most businesses

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

Route C028 — USPS business mailboxes 118, 573 homes
Route C010 — USPS business mailboxes 92, 893 homes
Route C027 — USPS business mailboxes 78, 964 homes
Route C016 — USPS business mailboxes 73, 607 homes
Route C046 — USPS business mailboxes 53, 611 homes

Select these 5 routes on the route map

Every carrier route in 01830

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C002	City	546	5	$66,753	—	—	—
C008	City	466	48	$88,022	—	—	—
C009	City	708	45	$144,539	—	—	—
C010	City	893	92	$40,717	—	—	—
C011	City	491	3	$88,022	—	—	—
C012	City	464	11	$88,022	—	—	—
C015	City	486	6	$116,513	—	—	—
C016	City	607	73	$57,013	—	—	—
C027	City	964	78	$38,482	—	—	—
C028	City	573	118	$62,988	—	—	—
C029	City	515	20	$88,022	—	—	—
C030	City	549	15	$102,192	—	—	—
C031	City	749	34	$40,717	—	—	—
C038	City	538	24	$117,456	—	—	—
C045	City	504	0	$114,517	—	—	—
C046	City	611	53	$17,999	—	—	—
C047	City	143	3	$40,717	—	—	—
R001	Rural	551	19	$131,181	—	—	—
R011	Rural	681	5	$131,181	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 01830 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

01834 (3.5 mi)
01860 (3.6 mi)
01835 — Haverhill city, MA (3.7 mi)
01832 — Haverhill city, MA (4 mi)
03865 (4 mi)
01985 (4.5 mi)
03858 (5.1 mi)
01833 (6 mi)

Areas that include 01830

Where it ranks

Mail every home in 01830

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) 01830, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 01830 in?: 01830 is a Haverhill, MA mailing address. By land area, 100% lies inside Haverhill.
What county is 01830 in?: 01830 is in Essex County.
What is the population of 01830?: About 26,530 people (±1,407), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 27,553.
What is the median household income in 01830?: $78,571 (±$9,844), 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 01830?: 19 USPS carrier routes with 11,039 residential and 652 business mailboxes (11,696 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 01830?: The closest, measured center to center: 01834 (3.5 mi), 01860 (3.6 mi), 01835 (3.7 mi, Haverhill), 01832 (4 mi, Haverhill), 03865 (4 mi) and 01985 (4.5 mi).

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