| City: | Frontier, Wyoming |
| County: | Lincoln County |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 9:36:06 PM |
| Population: | 10 [See All] |
| Area Code: | 307 |
| Classification: | PO Box |
| Coordinates: | 41.8103, -110.5382 |
| Land Area: | 2.909 sq mi |
| Quick Link: |
Frontier, Wyoming exists as a minimal postal designation along State Highway 233 in Lincoln County. With just 10 residents and 1 occupied household, this isn't a conventional community. The median age of 62.3 years suggests retirees or semi-permanent residents. One seasonal vacant unit indicates some occasional use.
Despite its classification as a PO Box ZIP code, Frontier has no post office and no PO boxes. Mail service is provided through a single Highway Contract route (Route H) covering State Highway 233. The ZIP is technically contained within the larger 83101 ZIP code area, functioning as a point location rather than an independent territory.
This ZIP represents an unusual postal artifact. The facility code "N" indicates no post office exists at this location. With zero business establishments and zero employment, Frontier serves as a minimal residential designation rather than an active community. All residents receive mail through highway contract delivery along the single state highway.
Single highway location with minimal delivery infrastructure.
ZIP Code 83121 has 10 residents and 1 households (average 10.00 persons per household). The median age is 62.3 years, significantly older than the state (38.7) and significantly older than the nation (38.8). The gender split is 60.0% male and 40.0% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (100.0%, much higher than the state average of 84.7% and well above the national average of 61.6%) and Black or African American (0.0%, much lower than the national average of 12.4%); Hispanic or Latino residents make up 0.0%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 10Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 3.4 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 1Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 10.00Source: Census DHC |
| Average Family Size: | 10.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 55 | 5 | 5 | 4 | 5 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Decennial Census | 14 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 10 | -- | -- | -- |
Median Age: 62.3
Male Median Age: 65
Female Median Age: 32.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 3 | 0 | 0 | 0 | 0 |
| White: | 10 | 100.00% |
| Black: | 0 | 0% |
| Hispanic:* | 0 | 0% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 10 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 6 | 60.00% | 65.0 years |
| Females: | 4 | 40.00% | 32.5 years |
| Total: | 10 | 100% | 62.3 years |
| Native, born in the United States: | 0 | 0% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0% |
| Foreign born, naturalized U.S. citizen: | 0 | 0% |
| Foreign born, not a U.S. citizen: | 0 | 0% |
| Total Population: | 0 | 100% |
| Total Native Population: | 0 | 0% |
| Total Foreign-born Population: | 0 | 0% |
ZIP Code 83121 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 0Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 83121 is located in Lincoln County, Wyoming, within the Metropolitan Statistical Area (CBSA ). This area has a population of 0 people, about 0.00% of whom live in ZIP Code 83121. It covers 2.909 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | --Source: Census |
| CBSA Number: | --Source: Census |
| CBSA Type: | --Source: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 0Source: Census |
| MSA: | Source: Census |
| Land Area: | 2.909 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | No DistrictsSource: USPS |
| Congressional Land Area: | sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 83121 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 January 1, 2026.