| City: | Stennis Space Center, Mississippi |
| City Alias: | Bay Saint Louis, Bay St Louis, Stennis Ctr, Stennis Sp Ct |
| Names to Avoid: | Mississippi Test Facility, N S T L, National Space Technology La, Stennis Spc Ctr |
| County: | Hancock County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:16:14 PM |
| Population: | No Population Data |
| Area Code: | 228 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 30.3867, -89.6139 |
| Land Area: | 16.864 sq mi |
| Quick Link: |
NASA's John C. Stennis Space Center operates under dedicated ZIP code 39529 in Hancock County, Mississippi, near Bay St. Louis on the Pearl River at the Mississippi-Louisiana border. Established in 1961 as the Mississippi Test Facility, later renamed National Space Technology Laboratory, the center became Stennis Space Center in 1988. The facility serves as NASA's primary and America's largest rocket propulsion test site. Originally constructed to test-fire the first and second stages of the Saturn V rockets that powered the Apollo program, the center has tested every major NASA propulsion system since. This postal designation has served the facility for over two decades.
The 12.29-square-mile campus hosts more than 5,200 employees across NASA and resident agencies, a workforce that would rank among Mississippi's top 10 employers if counted as a single entity. From 1975 to 2009, Stennis tested space shuttle main engines. Today the center tests RS-25 engines for the Space Launch System rocket supporting NASA's Artemis program. Census Business Patterns data shows 41 establishments with 610 employees within this ZIP code, reflecting the diverse federal and contractor operations. Valid mailing cities include Bay Saint Louis and Stennis Space Center.
| Establishments: | 41 |
| Employment: | 610 |
| Residential: | 0 |
| Business: | 2 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 39529 has 0 residents and 0 households. Age detail is not available. Gender breakdown is not available. Race and ethnicity breakdown is not available.
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 0Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 0.0 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 0Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 0.00Source: Census DHC |
| Average Family Size: | 0.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | -- | -- | -- | -- |
Median Age: 0
Male Median Age: 0
Female Median Age: 0
| 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| White: | 0 | 0% |
| Black: | 0 | 0% |
| Hispanic:* | 0 | 0% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 0 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 0 | 0% | 0.0 years |
| Females: | 0 | 0% | 0.0 years |
| Total: | 0 | 100% | 0.0 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 39529 supports both business and residential activity. According to the Business Census (2024), there are 42 business establishments, employing about 881 people with an annual payroll of $90,163,000. USPS data shows 0 residential mailboxes and 2 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 2Source: USPS |
| Total Delivery Receptacles: | 624Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 42Source: CBP |
| 1st Quarter Payroll: | $23,919,000Source: CBP |
| Annual Payroll: | $90,163,000Source: CBP |
| # of Employees: | 881Source: CBP |
ZIP Code 39529 is located in Hancock County, Mississippi, within the Gulfport-Biloxi, MS Metropolitan Statistical Area (CBSA 25060) and Mississippi's 4th Congressional District. This Metro area has a population of 248,820 people, about 0.00% of whom live in ZIP Code 39529. It covers 16.864 sq mi of land and a water area of 0.528 sq mi.
| CBSA Name: | Gulfport-Biloxi, MSSource: Census |
| CBSA Number: | 25060Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 248,820Source: Census |
| MSA: | Biloxi-Gulfport-Pascagoula, MS MSASource: Census |
| Land Area: | 16.864 sq miSource: Census |
| Water Area: | 0.528 sq miSource: Census |
| Congressional District: | 04Source: USPS |
| Congressional Land Area: | 8044.48 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 39529 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.