| City: | Markham, Texas |
| County: | Matagorda County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:43:03 AM |
| Population: | 1,191 [See All] |
| Area Code: | 979 |
| Classification: | PO Box |
| Coordinates: | 28.9703, -96.1039 |
| Land Area: | 39.566 sq mi |
| Quick Link: |
Markham is a small town in Matagorda County where nearly everyone gets their mail through PO Boxes. The post office maintains 505 boxes for a community of 1,191 residents and 438 households. That's an adoption rate of 1.15, which means the post office serves some people from surrounding areas too.
The ZIP does have rural carrier service on Broadway Street, but the PO Box system is clearly the dominant delivery method. About 25 businesses operate in Markham, though the 2020 Business Census counted just 10 establishments with 94 employees. The median household income is $53,929, and the median home value sits at $119,100. Most residents live in single-family homes, with owner-occupied housing making up the majority of the 438 occupied units.
Markham's street delivery is limited to Broadway Street, reflecting its small size and reliance on PO Box service.
ZIP Code 77456 has 1,191 residents and 438 households (average 2.72 persons per household). The median age is 41.6 years, older than the state (35.6) and slightly older than the nation (38.8). The gender split is 52.1% male and 47.9% female, which is slightly higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (66.9%, much higher than the state average of 50.1%) and Hispanic or Latino (34.8%); Hispanic or Latino residents make up 34.8%, which is much higher than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 1,191Source: Census DHC |
| 2024 ACS Population Estimate: | 1,394Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 30.1 people per sq mile |
| Average Income: | $65,284Source: Census ACS |
| Households: | 438Source: Census DHC |
| Average House Value: | $128,600Source: Census ACS |
| Persons Per Household: | 2.72Source: Census DHC |
| Average Family Size: | 2.90Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 1,136 | 1,179 | 1,172 | 1,389 | 1,376 | 1,239 | 1,323 | 1,588 | 1,384 | 1,116 | 1,063 | 1,345 | 1,447 | 1,394 |
| Decennial Census | 1,303 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1,191 | -- | -- | -- | -- |
Median Age: 41.6
Male Median Age: 39.6
Female Median Age: 43.8
| 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 | 42 | 49 | 46 | 40 | 24 | 21 | 53 | 37 | 40 | 41 | 44 | 37 | 34 | 38 | 26 | 34 | 9 | 5 |
| Female | 33 | 17 | 51 | 52 | 17 | 12 | 39 | 38 | 32 | 27 | 30 | 57 | 48 | 38 | 36 | 22 | 6 | 16 |
| Total | 75 | 66 | 97 | 92 | 41 | 33 | 92 | 75 | 72 | 68 | 74 | 94 | 82 | 76 | 62 | 56 | 15 | 21 |
| White: | 797 | 56.61% |
| Black: | 67 | 4.76% |
| Hispanic:* | 415 | 29.47% |
| Asian: | 1 | 0.07% |
| American Indian: | 11 | 0.78% |
| Hawaiian: | 0 | 0% |
| Other: | 117 | 8.31% |
| Total: | 1,408 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 620 | 52.06% | 39.6 years |
| Females: | 571 | 47.94% | 43.8 years |
| Total: | 1,191 | 100% | 41.6 years |
| Native, born in the United States: | 1,394 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 1,394 | 100% |
| Total Native Population: | 1,394 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2024, the Median household income is $65,284, which is well under the national median ($78,538), is up $14,363 (28.2%) since 2011 and above its 2019 pre-pandemic level by $25,358. Family households earn a median of $68,321 versus $0 for nonfamily households (a difference of $68,321). By gender, male median income is $70,074 and female is $0, which is considerably lower than the national female median ($53,445), with a current gap of $70,074 that has widened from 2011 to 2024. The labor-force participation rate is 41.4%, which is considerably lower than the national rate (63.5%). The unemployment rate is 0.0%, which is markedly below the national rate (5.2%). The largest occupation group is Natural resources (28.9%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $50,921 | $46,890 | $44,878 | $43,824 | $44,531 | $31,500 | $36,397 | $43,241 | $39,926 | $43,790 | $44,219 | $58,443 | $53,929 | $65,284 |
| Median Family Income | $48,500 | $44,639 | $44,665 | $43,971 | $48,490 | $49,821 | $39,907 | $53,908 | $53,643 | $60,174 | $55,508 | $44,906 | $48,098 | $68,321 |
| Median NonFamily Income | $57,800 | $60,491 | $60,365 | $32,250 | $0 | $18,475 | $19,756 | $23,269 | $22,259 | $23,026 | $0 | $0 | $0 | $0 |
| Median Male Income | $33,393 | $33,300 | $34,231 | $40,392 | $41,867 | $41,743 | $43,859 | $47,917 | $47,571 | $37,279 | $0 | $40,682 | $40,893 | $70,074 |
| Median Female Income | $25,707 | $35,341 | $26,094 | $33,690 | $35,673 | $31,250 | $32,688 | $33,080 | $32,723 | $33,786 | $0 | $0 | $0 | $0 |
| Employed: | 384 | 41.42% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 543 | 58.58% |
| Total: | 927 | 100% |
| Management, business, science, and arts: | 68 | 17.71% |
| Service: | 74 | 19.27% |
| Sales and Office: | 59 | 15.36% |
| Natural resources, construction, and maintenance: | 111 | 28.91% |
| Production, transportation, and material moving: | 72 | 18.75% |
| Total Civilian Employed Population: | 384 | 100% |
In 2024, the median home value is $128,600, which is far less than the national median ($303,400), is up $61,100 (90.52%) since 2011 and above its 2019 pre-pandemic level by $37,600. The median gross rent is $0, which is well under the national median ($1,348), is down $1,059 (100.00%) since 2011 and below its 2019 pre-pandemic level by $753. Of occupied housing, owners make up 100.00% (37.32% with a mortgage, 62.68% free-and-clear) and renters 0.00% - making this ZIP Code under national rental averages. The vacancy rate is 8.29%, which is far lower than the national rate (10.43%).
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 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $67,500 | $76,300 | $63,800 | $61,800 | $72,300 | $78,500 | $75,900 | $86,100 | $91,000 | $131,500 | $137,700 | $117,900 | $119,100 | $128,600 |
| 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 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $1,059 | $1,039 | $1,087 | $1,091 | $686 | $0 | $0 | $0 | $753 | $775 | $850 | $850 | $0 | $0 |
| Owner Occupied (with mortgage): | 128 | 37.32% |
| Owner Occupied (free and clear, no mortgage): | 215 | 62.68% |
| Renter Occupied: | 0 | 0.00% |
| Total Occupied Housing Units: | 343 | 100% |
| Occupied Housing Units: | 343 | 91.71% |
| Vacant Housing Units (not graphed): | 31 | 8.29% |
| Total Housing Units: | 374 | 100% |
| Single-Family Units: | 188 | 50.27% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 186 | 49.73% |
| Total Housing Units: | 374 | 100% |
In 2024, 15.20% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.00%). High school or higher is 81.40%, which is comparable to the national rate (89.40%). The uninsured rate is 13.60%, which is comparable to the national rate (8.60%). Private coverage is 34.40%, which is falls below the national rate (67.30%). Public coverage is 77.60%, which is far higher than the national rate (36.30%). The share of people in poverty is 24.20%, which is comparable to the national rate (8.70%), up 15.70 percentage points since 2011 and above its 2019 pre-pandemic level by 6.40 percentage points. This signals a sharp increase in hardship - a shrinking consumer base, heavy pressure on public services, and job-market contraction risks. Among residents ages 3+, the largest enrollment group is high school (55.90%). College enrollment is 0.00%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 6 | 1.00% |
| 9th to 12th grade, no diploma: | 105 | 17.56% |
| High school graduate (includes equivalency): | 250 | 41.81% |
| Some college, no degree: | 146 | 24.41% |
| Associate's degree: | 0 | 0.00% |
| Bachelor's degree: | 91 | 15.22% |
| Graduate or professional degree: | 0 | 0.00% |
| Total: | 598 | 100% |
| High school or higher: | 487 | 81.44% |
| Bachelor's degree or higher: | 91 | 15.22% |
| Private Insurance: | 479 | 27.36% |
| Public Insurance: | 1,082 | 61.79% |
| No Insurance: | 190 | 10.85% |
| Total: | 1,751 | 100% |
| Has Health Insurance: | 1,561 | 89.15% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 8.7% | 6.5% | 10.9% | 14.9% | 19.1% | 19.0% | 22.5% | 21.1% | 18.0% | 11.7% | 15.0% | 26.1% | 24.4% | 24.2% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 198 | 44.10% |
| High school (grades 9-12): | 251 | 55.90% |
| College or graduate school: | 0 | 0.00% |
| Total: | 449 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 449 | 100.00% |
ZIP Code 77456 supports both business and residential activity. According to the Business Census (2024), there are 10 business establishments, employing about 94 people with an annual payroll of $9,275,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 511Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 10Source: CBP |
| 1st Quarter Payroll: | $2,673,000Source: CBP |
| Annual Payroll: | $9,275,000Source: CBP |
| # of Employees: | 94Source: CBP |
ZIP Code 77456 is located in Matagorda County, Texas, within the Bay City, TX Metropolitan Statistical Area (CBSA 13060) and Texas's 22nd Congressional District. This Micro area has a population of 36,702 people, about 3.25% of whom live in ZIP Code 77456. It covers 39.566 sq mi of land and a water area of 0.228 sq mi.
| CBSA Name: | Bay City, TXSource: Census |
| CBSA Number: | 13060Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 36,702Source: Census |
| MSA: | Source: Census |
| Land Area: | 39.566 sq miSource: Census |
| Water Area: | 0.228 sq miSource: Census |
| Congressional District: | 22Source: USPS |
| Congressional Land Area: | 1032.84 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4846716Source: Census |
| Place Name: | Markham CDP; TexasSource: Census |
We could not locate which school district 77456 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.