ZIP Code 19850 in Wilmington, DE

Data Last Updated: January 1, 2026
City:Wilmington, Delaware
County:New Castle County
Timezone:Eastern (GMT -05:00)
Local Time:1:57:27 AM
Population:No Population Data
Area Code:302
Classification:PO Box
Coordinates:39.7579, -75.5474
Quick Link:
https://www.zip-codes.com/zip-code/19850/zip-code-19850.asp

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19850 - Wilmington, DE

ZIP Code 19850, Wilmington

Small Town Unique ZIP No Census Data
LocationNew Castle County, DE
Area0 sq mi Single Point
Delivery Points812 (446 businesses)
PO Boxes366
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 19808
Key Facts
  • This is a PO Box-only ZIP code with no street delivery routes
  • The post office maintains 366 PO Boxes serving the Wilmington area
  • Business customers represent a significant portion of the facility's use, with 446 business accounts
  • Customers with street addresses in this area typically use ZIP code 19808 for home delivery
  • The facility recorded 7,338 jobs associated with this ZIP code in business establishment data

Postal Services

The facility supports 446 business accounts alongside its residential boxes. While employment records show 7,338 jobs associated with addresses using this ZIP, the actual delivery infrastructure consists entirely of the PO Box operation. This arrangement is common in urban areas where a dedicated PO Box ZIP serves customers who prefer box service over street delivery.

Street Name Patterns

This ZIP code contains no street delivery routes. All mail service is provided through PO Boxes at the Wilmington post office facility.

Nearby Areas

Westmoreland Union Park Gardens The Flats Wawaset Park Highlands

Business & Employment Statistics


ZIP Code 19850 supports both business and residential activity. According to the Business Census (2024), there are 11 business establishments, employing about 7,338 people with an annual payroll of $1,621,787,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:1,270Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:11Source: CBP
1st Quarter Payroll:$720,737,000Source: CBP
Annual Payroll:$1,621,787,000Source: CBP
# of Employees:7,338Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 19850 is located in New Castle County, Delaware, within the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area (CBSA 37980). This Metro area has a population of 6,241,882 people, about 0.00% of whom live in ZIP Code 19850, and is subdivided into the Wilmington, DE-MD-NJ division. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Philadelphia-Camden-Wilmington, PA-NJ-DE-MDSource: Census
CBSA Number:37980Source: Census
CBSA Type:MetroSource: Census
CBSA Division:Wilmington, DE-MD-NJ (CBSA Div 48864)Source: Census
CBSA Population:6,241,882Source: Census
MSA:Philadelphia-Wilmington-Atlantic City, PA-NJ-DE-MD CMSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:No DistrictsSource: USPS
Congressional Land Area: sq miSource: Census
PMSA:Wilmington-Newark, DE-MD PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:1077580Source: Census
Place Name:Wilmington city; DelawareSource: Census

Adjacent & Nearby ZIP Codes


19880 | | 19810

Schools in ZIP Code 19850


We could not locate which school district 19850 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.

Warner Elementary School 801 West 18th Street
Wilmington, DE 19802
District: Red Clay Consolidated School DistrictNearby
Shortlidge (Evan G.) Academy 100 West 18th Street
Wilmington, DE 19802
District: Red Clay Consolidated School DistrictNearby
First State School 501 West 14th Street
Wilmington, DE 19899
District: Red Clay Consolidated School DistrictNearby
Freire Charter School Null
Wilmington, DE 19801
District: UnknownNearby
Kuumba Academy Charter School 1200 North French Street
Wilmington, DE 19801
District: UnknownNearby
Sharon Temple Adventist School 2001 N Washington St
Wilmington, DE 19802
District: Private SchoolNearby
Augustine Hills School 6 Stone Hill Rd
Wilmington, DE 19803
District: Private SchoolNearby
Ursuline Academy, Lower 1106 Pennsylvania Ave
Wilmington, DE 19806
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 19850


Strayer University-Delaware 800 North King Street Suite 101
Wilmington, DE 19801
Type: Post Secondary
Delaware College Of Art And Design 600 N Market St
Wilmington, DE 19801-3007
Type: Post Secondary
Delaware Technical Community College-Stanton/Wilmington 333 N. Shipley Street
Wilmington, DE 19801
Type: Post Secondary
Relay Graduate School Of Education - Delaware 3411 Silverside Rd, Baynard Building, Suite 104
Wilmington, DE 19801
Type: Post Secondary
Wilmington University 320 Dupont Hwy
New Castle, DE 19720
Type: Post Secondary
Salem Community College 460 Hollywood Avenue
Carneys Point, NJ 08069-2799
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 January 1, 2026.

  1. U.S. Postal Service [Last Updated: 1/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 1/1/2026], 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: 1/1/2026], https://nces.ed.gov