ZIP Code 03859 in Newton Junction, NH

Data Last Updated: March 1, 2026
City:Newton Junction, New Hampshire
City Alias:Newton Jct
County:Rockingham County
Timezone:Eastern (GMT -05:00)
Local Time:7:58:57 PM
Population:No Population Data
Area Code:603
Classification:PO Box
Coordinates:42.8672, -71.0666
Quick Link:
https://www.zip-codes.com/zip-code/03859/zip-code-03859.asp

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03859 - Newton Junction, NH

ZIP Code 03859, Newton Junction

Small Town Unique ZIP No Census Data
LocationRockingham County, NH
Area0 sq mi Single Point
Delivery Points110 (1 homes, 12 businesses)
PO Boxes97
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 03858
Key Facts
  • The post office maintains 97 PO Boxes, significantly more than would be needed for the immediate vicinity alone.
  • Only one street receives carrier delivery service: W Main Street.
  • Highway Contract Route delivery is used instead of traditional city or rural carrier routes.
  • Business data from 2003 shows 4 establishments with 46 employees, suggesting light commercial activity.
  • The ZIP code has 7 distinct ZIP+4 zones, with 5 dedicated to PO Box ranges and only 2 for street addresses.
  • Newton Junction doesn't have its own geographic boundary and is enclosed within neighboring ZIP 03858.

Postal Services

The facility serves a mix of residential and business customers. Records show 12 business addresses and 4 establishments employing 46 people as of 2003 business data. Highway Contract Route delivery handles the limited street service, typical for New Hampshire's smaller rural communities. The post office also processes mail for one named building and maintains separate ZIP+4 records for both street and PO Box addresses.

Street Name Patterns

Minimal Street Network

With only one street in the postal database, Newton Junction's infrastructure centers almost entirely on PO Box service. W Main Street is the sole carrier route, with Highway Contract delivery handling what little street service exists.

Nearby Areas

Prospect Hill - Back Bay Arlington North Common South Common Tower Hill

Business & Employment Statistics


ZIP Code 03859 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 46 people with an annual payroll of $5,096,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:256Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:4Source: CBP
1st Quarter Payroll:$744,000Source: CBP
Annual Payroll:$5,096,000Source: CBP
# of Employees:46Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 03859 is located in Rockingham County, New Hampshire, within the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area (CBSA 14460) and New Hampshire's 1st Congressional District. This Metro area has a population of 4,552,402 people, about 0.00% of whom live in ZIP Code 03859, and is subdivided into the Rockingham County-Strafford County, NH division. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Boston-Cambridge-Newton, MA-NHSource: Census
CBSA Number:14460Source: Census
CBSA Type:MetroSource: Census
CBSA Division:Rockingham County-Strafford County, NH (CBSA Div 40484)Source: Census
CBSA Population:4,552,402Source: Census
MSA:Source: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:01Source: USPS
Congressional Land Area:2463.65 sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:--Source: Census
Place Name:--Source: Census

Adjacent & Nearby ZIP Codes


03860 | | 03858

Schools in ZIP Code 03859


We could not locate which school district 03859 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Memorial School 31 W. Main St.
Newton, NH 03858
District: Sanborn Regional School DistrictNearby
Pollard Elementary School 120 Main St.
Plaistow, NH 03865
District: Timberlane Regional School DistrictNearby
Timberlane Regional High School 36 Greenough Rd.
Plaistow, NH 03865
District: Timberlane Regional School DistrictNearby
Timberlane Regional Middle School 44 Greenough Rd.
Plaistow, NH 03865
District: Timberlane Regional School DistrictNearby
Sanborn Regional Middle School 17 Danville Road
Kingston, NH 03848
District: Sanborn Regional School DistrictNearby
Seacoast Learning Collaborative 31a W Main St
Newton, NH 03858
District: Private SchoolNearby
Merrimac Heights Academy 102 W Main St
Merrimac, MA 01860
District: Private SchoolNearby
Hampstead Academy 320 E Rd
Hampstead, NH 03841
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 03859


Northern Essex Community College 100 Elliott Street
Haverhill, MA 01830-2399
Type: Post Secondary
Northpoint Bible College 320 South Main Street
Haverhill, MA 01835
Type: Post Secondary
New England Tractor Trailer Training School Of Massachusetts 1600 Osgood Street
North Andover, MA 01845-1048
Type: Post Secondary
Spa Tech Institute-North Andover 202 Sutton Street Suite 460
North Andover, MA 01845-1613
Type: Post Secondary
Merrimack College 315 Turnpike St
North Andover, MA 01845
Type: Post Secondary
Massachusetts School Of Law 500 Federal St Woodland Park
Andover, MA 01810
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.

  1. U.S. Postal Service [Last Updated: 3/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 3/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 3/1/2026], https://nces.ed.gov