| City: | Littleton, Colorado |
| City Alias: | Centennial |
| County: | Arapahoe County |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 8:54:13 PM |
| Population: | No Population Data |
| Area Codes: | 720 / 983 |
| Classification: | PO Box |
| Coordinates: | 39.6135, -105.0164 |
| Quick Link: |
ZIP code 80161 serves a business concentration along E Arapahoe Rd in Littleton, Colorado. This isn't a residential area. The entire ZIP contains just one street with 96 delivery points, all designated as units at the same address. Zero people live within the ZIP boundary according to Census data.
The post office at this location maintains 367 PO Boxes and handles delivery to 327 business addresses. That's a business-heavy pattern unusual even for PO Box classified ZIPs. With 11 business establishments employing 94 workers, this location serves a commercial cluster rather than a residential community.
Mail delivery here works differently than in residential neighborhoods. The 96 ZIP+4 records on E Arapahoe Rd all use UNIT designators, indicating a multi-tenant commercial building or business park. Businesses can receive mail via those unit addresses or maintain PO Boxes at the facility. The Centennial alias means mail addressed to either Littleton or Centennial will reach this location.
This ZIP sits within the larger 80122 ZIP code area, which handles residential delivery for the surrounding Centennial community. Street delivery is available in the broader area, so this location's PO Box classification doesn't mean businesses here lack alternatives. It's a postal facility serving a specific commercial node within the Denver metro suburbs.
Single street with unit-based addressing for business tenants.
ZIP Code 80161 supports both business and residential activity. According to the Business Census (2024), there are 9 business establishments, employing about 72 people with an annual payroll of $2,851,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 676Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 9Source: CBP |
| 1st Quarter Payroll: | $635,000Source: CBP |
| Annual Payroll: | $2,851,000Source: CBP |
| # of Employees: | 72Source: CBP |
ZIP Code 80161 is located in Arapahoe County, Colorado, within the Denver-Aurora-Centennial, CO Metropolitan Statistical Area (CBSA 19740) and Colorado's 6th Congressional District. This Metro area has a population of 2,977,085 people, about 0.00% of whom live in ZIP Code 80161. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Denver-Aurora-Centennial, COSource: Census |
| CBSA Number: | 19740Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,977,085Source: Census |
| MSA: | Denver-Boulder-Greeley, CO CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 06Source: USPS |
| Congressional Land Area: | 474.66 sq miSource: Census |
| PMSA: | Denver, CO PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0845255Source: Census |
| Place Name: | Littleton city; ColoradoSource: Census |
We could not locate which school district 80161 belongs to, but we will update this once new district data is released. There are 0 public schools with a nearby mailing address, but we have located 5 public schools nearby. There are however 1 private school(s). 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 January 1, 2026.