| City: | Mont Belvieu, Texas |
| County: | Chambers County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:03:25 PM |
| Population: | 99 [See All] |
| Area Codes: | 346 / 713 / 832 |
| Classification: | PO Box |
| Coordinates: | 29.8672, -94.8861 |
| Land Area: | 1.491 sq mi |
| Quick Link: |
This isn't a border community or a typical small town. It's a service center for the petrochemical corridor between Houston and Beaumont. The ZIP classification shows "P" for PO Box only, and the data confirms this is a true PO Box only zone. There's no street delivery alternative. The 21 occupied households here rely exclusively on PO Boxes, as do hundreds of customers from nearby industrial areas and rural properties.
The street delivery infrastructure is minimal by design. Eagle Drive accounts for 100 ZIP+4 records—the only street with unit-level addressing in this zone. That single street hosts a named building for the Postmaster, but the real story is what isn't here: no city grid, no residential subdivisions, no typical small-town layout. This is a postal facility serving a wide geographic area where industrial operations and scattered rural properties dominate the landscape.
The surrounding region includes neighborhoods like Pinehurst (3.3 miles away), Hunters Village (3.4 miles), and McGee Place (3.6 miles). These communities, some within Baytown's orbit, contribute to the high PO Box demand. The median age of 32.7 years and the population-to-household ratio of 4.7 people per household suggest working families—likely employed in the area's chemical plants and industrial facilities—who need reliable mail service despite living in areas without carrier routes.
Mont Belvieu's role as a regional hub reflects broader patterns in Texas's industrial corridors. When residential areas and industrial zones don't align with traditional postal delivery boundaries, facilities like 77580 fill the gap. The post office becomes the central point where rural residents, industrial workers, and businesses from multiple surrounding areas converge for mail services that street delivery can't reach.
With only Eagle Drive appearing in the ZIP+4 records, this zone has almost no traditional street delivery infrastructure. The single street with unit-level addressing serves the postal facility itself and minimal associated development. This pattern is typical of regional hub ZIPs that exist primarily to provide PO Box services to surrounding areas rather than to deliver mail on local streets.
ZIP Code 77580 has 99 residents and 21 households (average 4.71 persons per household). The median age is 32.7 years, slightly younger than the state (35.6) and younger than the nation (38.8). The gender split is 57.6% male and 42.4% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (39.4%, much lower than the state average of 50.1% and well below the national average of 61.6%) and Hispanic or Latino (36.4%); Hispanic or Latino residents make up 36.4%, which is much higher than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 99Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 66.4 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 21Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 4.71Source: Census DHC |
| Average Family Size: | 5.06Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 530 | 383 | 319 | 515 | 625 | 218 | 534 | 715 | 1,099 | 999 | 0 | 0 | 0 |
| Decennial Census | 312 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 99 | -- | -- | -- |
Median Age: 32.7
Male Median Age: 39.5
Female Median Age: 17.5
| 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 | 3 | 4 | 7 | 1 | 2 | 6 | 8 | 3 | 3 | 8 | 1 | 3 | 3 | 2 | 1 | 0 | 2 |
| Female | 6 | 9 | 5 | 5 | 2 | 2 | 1 | 0 | 2 | 1 | 1 | 7 | 0 | 1 | 0 | 0 | 0 | 0 |
| Total | 6 | 12 | 9 | 12 | 3 | 4 | 7 | 8 | 5 | 4 | 9 | 8 | 3 | 4 | 2 | 1 | 0 | 2 |
| White: | 39 | 37.14% |
| Black: | 13 | 12.38% |
| Hispanic:* | 36 | 34.29% |
| Asian: | 5 | 4.76% |
| American Indian: | 5 | 4.76% |
| Hawaiian: | 0 | 0% |
| Other: | 7 | 6.67% |
| Total: | 105 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 57 | 57.58% | 39.5 years |
| Females: | 42 | 42.42% | 17.5 years |
| Total: | 99 | 100% | 32.7 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% |
In 2023, the Median household income is $0, which is far less than the state median ($76,292), is down $130,536 (100.0%) since 2011 and below its 2019 pre-pandemic level by $139,414. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $0 and female is $0, which is well under the state female median ($49,838), with a current gap of $0 that has narrowed from 2011 to 2023.
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $130,536 | $129,712 | $131,641 | $179,667 | $177,692 | $132,813 | $0 | $0 | $139,414 | $157,887 | $0 | $0 | $0 |
| Median Family Income | $144,125 | $172,955 | $176,250 | $186,528 | $177,692 | $132,813 | $0 | $142,188 | $144,375 | $158,592 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $111,500 | $120,417 | $120,104 | $115,536 | $100,772 | $0 | $0 | $142,000 | $142,625 | $140,119 | $0 | $0 | $0 |
| Median Female Income | $39,286 | $38,977 | $39,917 | $48,667 | $53,790 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 0 | 0% |
| Unemployed: | 0 | 0% |
| Not In Labor Force: | 0 | 0% |
| Total: | 0 | 100% |
| Management, business, science, and arts: | 0 | 0% |
| Service: | 0 | 0% |
| Sales and Office: | 0 | 0% |
| Natural resources, construction, and maintenance: | 0 | 0% |
| Production, transportation, and material moving: | 0 | 0% |
| Total Civilian Employed Population: | 0 | 100% |
In 2023, the median home value is $0, which is considerably lower than the state median ($260,400), is down $194,200 (100.00%) since 2011 and below its 2019 pre-pandemic level by $332,100. The median gross rent is $0, which is far less than the state median ($1,339), is down $998 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $194,200 | $196,600 | $191,500 | $198,800 | $287,000 | $312,500 | $317,300 | $331,800 | $332,100 | $340,400 | $0 | $0 | $0 |
| Less than $500: | 0 | 0% |
| $500 to $999: | 0 | 0% |
| $1,000 to $1,499: | 0 | 0% |
| $1,500 to $1,999: | 0 | 0% |
| $2,000 to $2,499: | 0 | 0% |
| $2,500 to $2,999: | 0 | 0% |
| $3,000 or more: | 0 | 0% |
| No Rent: | 0 | 0% |
| Total: | 0 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $998 | $1,200 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 0 | 0% |
| Owner Occupied (free and clear, no mortgage): | 0 | 0% |
| Renter Occupied: | 0 | 0% |
| Total Occupied Housing Units: | 0 | 100% |
| Occupied Housing Units: | 0 | 0% |
| Vacant Housing Units (not graphed): | 0 | 0% |
| Total Housing Units: | 0 | 100% |
| Single-Family Units: | 0 | 0% |
| Multi-Family Units: | 0 | 0% |
| Other Units: | 0 | 0% |
| Total Housing Units: | 0 | 100% |
ZIP Code 77580 supports both business and residential activity. According to the Business Census (2024), there are 58 business establishments, employing about 2,687 people with an annual payroll of $328,784,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 10,412Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 58Source: CBP |
| 1st Quarter Payroll: | $110,562,000Source: CBP |
| Annual Payroll: | $328,784,000Source: CBP |
| # of Employees: | 2,687Source: CBP |
ZIP Code 77580 is located in Chambers County, Texas, within the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area (CBSA 26420) and Texas's 36th Congressional District. This Metro area has a population of 7,274,714 people, about 0.00% of whom live in ZIP Code 77580. It covers 1.491 sq mi of land and a water area of 0.018 sq mi.
| CBSA Name: | Houston-Pasadena-The Woodlands, TXSource: Census |
| CBSA Number: | 26420Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 7,274,714Source: Census |
| MSA: | Houston-Galveston-Brazoria, TX CMSASource: Census |
| Land Area: | 1.491 sq miSource: Census |
| Water Area: | 0.018 sq miSource: Census |
| Congressional District: | 36Source: USPS |
| Congressional Land Area: | 7125.83 sq miSource: Census |
| PMSA: | Houston, TX PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4849068Source: Census |
| Place Name: | Mont Belvieu city; TexasSource: Census |
ZIP Code 77580 is in the Barbers Hill Independent School District, which serves grades Pre-Kindergarten thru 12th. There are 10 public school(s) in this ZIP Code, and we have located 3 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.