| City: | Middleville, New Jersey |
| County: | Sussex County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:22:31 PM |
| Population: | No Population Data |
| Area Codes: | 862 / 973 |
| Classification: | PO Box |
| Coordinates: | 41.0555, -74.8633 |
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Middleville is a small rural community in Sussex County, New Jersey, where mail delivery doesn't follow typical patterns. This ZIP code operates exclusively with PO Boxes, though it's unclear whether residents have street delivery alternatives from neighboring areas. The post office maintains 26 PO Boxes serving both the handful of local addresses and likely customers from surrounding areas.
The postal infrastructure includes one street address on County Road 521, along with one rural carrier route (Route R) and one general delivery route (Route G). Seven businesses use this ZIP code for mailing, and the post office itself appears in the building directory. With zero reported population in USPS records and minimal geographic footprint, this represents a classic small-town post office serving a dispersed rural customer base rather than a defined residential neighborhood.
The single street record is County Road 521, a typical rural highway designation in New Jersey. This reflects the ZIP's function as a postal service point along a county route rather than a town with developed street infrastructure.
ZIP Code 07855 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 11 people with an annual payroll of $2,494,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 109Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 3Source: CBP |
| 1st Quarter Payroll: | $493,000Source: CBP |
| Annual Payroll: | $2,494,000Source: CBP |
| # of Employees: | 11Source: CBP |
ZIP Code 07855 is located in Sussex County, New Jersey, within the New York-Newark-Jersey City, NY-NJ Metropolitan Statistical Area (CBSA 35620) and New Jersey's 7th Congressional District. This Metro area has a population of 18,897,109 people, about 0.00% of whom live in ZIP Code 07855, and is subdivided into the Newark, NJ division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | New York-Newark-Jersey City, NY-NJSource: Census |
| CBSA Number: | 35620Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Newark, NJ (CBSA Div 35084)Source: Census |
| CBSA Population: | 18,897,109Source: Census |
| MSA: | New York-Northern New Jersey-Long Island, NY-NJ-CT-PASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 07Source: USPS |
| Congressional Land Area: | 970.19 sq miSource: Census |
| PMSA: | Newark, NJ PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 07855 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.
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 February 1, 2026.