What city is 03070 in?

03070 is a New Boston, NH mailing address. By land area, 8% lies inside Klondike Corner and 1% lies inside New Boston; the rest is outside any Census-defined city or community.

What county is 03070 in?

03070 is in Hillsborough County.

What is the population of 03070?

About 6,177 people (±19), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,134.

What is the median household income in 03070?

$154,000 (±$25,990), compared with $99,031 for New Hampshire as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 03070?

4 USPS carrier routes with 2,113 residential and 21 business mailboxes (2,136 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 03070?

The closest, measured center to center: 03057 (4.7 mi), 03043 (6.7 mi, Francestown), 03082 (6.9 mi), 03045 (7 mi, Goffstown), 03281 (7.1 mi) and 03110 (8.1 mi).

03070 ZIP Code, New Boston, NH

03070 is a ZIP code in New Boston, New Hampshire in Hillsborough County. It covers 43 square miles of land. The closest ZIP codes are 03057, 03043 and 03082. 6,177 people live here in 2,030 households. With about 143 people per square mile it is lightly settled, and most homes are owner-occupied (88%). Median household income is $154,000, well above the New Hampshire median of $99,031; 43% of households have children under 18.

Quick facts

Mailing city: New Boston, NH
County: Hillsborough County
Land area: 43 sq mi
Population: 6,177
Median household income: $154,000
Carrier routes: 4 (2,113 homes)

Key figures

Measure	Value
Residents	6,177
Households	2,030
Median household income	$154,000
Income per person	$59,542
Median age	38.8
Homeowners	88.0%
Median home value	$480,300
Median rent	$1,193
Bachelor's degree or higher	44.3%
Average commute (minutes)	35.6
Households with kids under 18	43.3%
Moved in the past year	5.5%
Below the poverty line	6.3%
Broadband internet	97.1%
Speak a non-English language at home	0.9%

Household income

% of households	Value
<$10K	1.6%
$10–15K	1.8%
$15–25K	1.6%
$25–35K	1.1%
$35–50K	0.7%
$50–75K	8.3%
$75–100K	10.1%
$100–150K	24.0%
$150–200K	19.8%
$200K+	31.0%

Age

% of all residents	Value
<10	11.2%
10–19	17.4%
20–24	1.6%
25–34	10.0%
35–44	16.5%
45–54	17.7%
55–64	8.4%
65–74	13.3%
75+	3.9%

Tenure

% of housing units	Value
Owned, with mortgage	65.6%
Owned outright	18.8%
Rented	11.3%
Vacant	4.4%

Type of building

% of housing units	Value
Detached house	82.7%
Townhome	3.1%
2–4 units	10.4%
5–19 units	0.6%
20+ units	0.0%
Mobile / other	3.2%

Businesses in 03070

116 business establishments with 564 employees (ZIP Codes Business Patterns 2023).

Construction: 27
Professional, Scientific, and Technical Services: 16
Administrative and Support and Waste Management and Remediation Services: 12
Health Care and Social Assistance: 11
Other Services (except Public Administration): 10
Retail Trade: 8
Wholesale Trade: 6
Real Estate and Rental and Leasing: 6

EDDM carrier routes

03070 has 4 USPS carrier routes with 2,113 residential and 21 business mailboxes. Open the EDDM route map.

Carrier routes in 03070

03070 has 4 USPS carrier routes (4 rural (R)) with 2,113 residential and 21 business mailboxes. Routes range from 507 homes (R001) to 540 homes (R004); the median route has 533 homes. The Census counted 2,030 households in 03070 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 03070 for…

Most businesses

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

Route R003 — USPS business mailboxes 11, 532 homes
Route R004 — USPS business mailboxes 6, 540 homes
Route R002 — USPS business mailboxes 3, 534 homes
Route R001 — USPS business mailboxes 1, 507 homes

Select these 4 routes on the route map

Every carrier route in 03070

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	507	1	$160,236	—	—	—
R002	Rural	534	3	$160,236	—	—	—
R003	Rural	532	11	$165,730	—	—	—
R004	Rural	540	6	$160,236	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 03070 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

03057 (4.7 mi)
03043 — Francestown CDP, NH (6.7 mi)
03082 (6.9 mi)
03045 — Goffstown CDP, NH (7 mi)
03281 (7.1 mi)
03110 (8.1 mi)
03031 — Amherst CDP, NH (8.3 mi)
03047 (10.1 mi)

Areas that include 03070

Klondike Corner, NH ZIP codes — 1 ZIP code
New Boston, NH ZIP codes — 1 ZIP code
Hillsborough County ZIP codes — 34 ZIP codes
New Hampshire ZIP code data

Where it ranks

Mail every home in 03070

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) 03070, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 03070 in?: 03070 is a New Boston, NH mailing address. By land area, 8% lies inside Klondike Corner and 1% lies inside New Boston; the rest is outside any Census-defined city or community.
What county is 03070 in?: 03070 is in Hillsborough County.
What is the population of 03070?: About 6,177 people (±19), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,134.
What is the median household income in 03070?: $154,000 (±$25,990), compared with $99,031 for New Hampshire as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 03070?: 4 USPS carrier routes with 2,113 residential and 21 business mailboxes (2,136 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 03070?: The closest, measured center to center: 03057 (4.7 mi), 03043 (6.7 mi, Francestown), 03082 (6.9 mi), 03045 (7 mi, Goffstown), 03281 (7.1 mi) and 03110 (8.1 mi).

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