City · Texas
Southmayd, Texas
Southmayd, city, in Grayson County, Texas. Southmayd had 1,110 residents on July 1, 2025 by the Census Bureau's estimate, up 12.6% since 2020; the 2020 Census counted 978 and the ACS 2020-2024 5-year estimates put it at 1,413 (±470). GEOID 4869104.
Residents, July 2025 estimate
1,110
Census Bureau estimate (no margin published)
2020 Census count: 978 · ACS 2020-2024: 1,413 ±470
Median household income
$86,250
±$36,988 (90% margin)
Texas: $78,476
Median home value
$164,000
±$35,948 (90% margin)
Texas: $283,800
Median gross rent
$1,715
±$49 (90% margin)
Texas: $1,403
Where is Southmayd and what county is it in?
Southmayd is a city in Grayson County, Texas. It covers 2.8 square miles of land, 347 residents per square mile in 2020.
Southmayd is in the Sherman-Denison, TX metropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Southmayd, and is it growing?
The Census Bureau estimates that 1,110 people lived in Southmayd on July 1, 2025, up 12.6% since 2020, faster than Texas (+8.8%). The 2020 Census counted 978 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,413 (±470).
| Measure | Southmayd | Grayson County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,413 ±470 | 143,337 | no clear change |
| Households | 468 ±174 | 55,248 | no clear change |
| Average household size | 3.02 ±0.55 | 2.55 | no clear change |
| Housing units | 540 ±181 | 62,132 | no clear change |
Southmayd's population since 2000
From 992 in 2000 to 1,110 in 2025: up 11.9%. The 2000, 2010 and 2020 figures are census counts, each for Southmayd as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Southmayd?
The median resident of Southmayd is 31.9 years old; 27.5% are under 18 and 9.0% are 65 or older. The largest group is non-Hispanic white residents at 48.1%, then Hispanic or Latino residents (of any race) at 48.0%. 14.6% of residents were born outside the United States.
| Measure | Southmayd | Grayson County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 31.9 ±6.9 | 39.0 | no clear change |
| Under 18 years | 27.5% ±9.2 pts | 24.0% | – |
| 65 years and over | 9.0% ±5.1 pts | 18.1% | – |
| Male | 51.7% ±6.4 pts | 48.9% | – |
| Hispanic or Latino (any race) | 48.0% ±14.8 pts | 16.3% | +30.7 pts |
| White alone, not Hispanic | 48.1% ±13.2 pts | 71.1% | −28.9 pts |
| Black or African American alone, not Hispanic | 0.7% ±1.2 pts | 5.1% | – |
| Asian alone, not Hispanic | 0.4% ±0.5 pts | 1.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.5% ±0.6 pts | 0.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.5 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.8% ±2.3 pts | 4.9% | – |
| Some other race alone, not Hispanic | 0.5% ±0.9 pts | 0.5% | – |
| Born outside the United States | 14.6% ±6.5 pts | 7.7% | – |
| Speak a language other than English at home (age 5+) | 39.7% ±15.3 pts | 12.4% | – |
| Civilian veterans (age 18+) | 3.5% ±2.0 pts | 8.4% | – |
| With a disability | 11.3% ±5.3 pts | 13.6% | – |
| No health insurance coverage | 25.4% ±6.3 pts | 15.7% | no clear change |
| High school graduate or higher (age 25+) | 75.7% ±9.9 pts | 89.9% | – |
| Bachelor's degree or higher (age 25+) | 6.4% ±3.9 pts | 23.9% | – |
| Graduate or professional degree (age 25+) | 0.9% ±1.1 pts | 7.8% | – |
| Lived in the same house a year earlier | 90.6% ±6.5 pts | 82.9% | – |
| Moved from another state in the past year | 0.0% ±3.6 pts | 1.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Southmayd earn?
Half of Southmayd's 468 households earn less than $86,250 a year (±$36,988), against $72,182 in Grayson County and $78,476 in Texas. In 2015-2019 it was $59,996 in 2024 dollars; the margins of error cannot tell the two periods apart. 16.8% of residents live below the poverty line.
| Measure | Southmayd | Grayson County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $86,250 ±$36,988 | $72,182 | no clear change |
| Mean household income | $102,022 ±$31,653 | $98,000 | – |
| Per capita income | $31,560 ±$9,665 | $38,174 | no clear change |
| People below the poverty line | 16.8% ±10.7 pts | 11.2% | no clear change |
| Children under 18 below the poverty line | 22.6% ±24.0 pts | 15.9% | – |
| Households receiving SNAP | 19.0% ±13.2 pts | 8.3% | – |
| Households with a computer | 94.4% ±5.5 pts | 95.1% | – |
| Households with a broadband subscription | 64.5% ±23.1 pts | 89.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Southmayd?
Owners occupy 90.6% of Southmayd's occupied homes and renters 9.4%. The median owner-occupied home is valued at $164,000 by its owner (±$35,948). The median renter pays $1,715 a month including utilities.
| Measure | Southmayd | Grayson County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $164,000 ±$35,948 | $248,400 | +$87,451 |
| Median gross rent | $1,715 ±$49 | $1,310 | +$607 |
| Renters paying 35% or more of income on rent | 41.5% ±33.4 pts | 44.2% | – |
| Median monthly owner costs, with a mortgage | $1,925 ±$786 | $1,830 | – |
| Owner-occupied homes | 90.6% ±7.0 pts | 66.8% | +13.2 pts |
| Renter-occupied homes | 9.4% ±7.0 pts | 33.2% | – |
| Housing units | 540 ±181 | 62,132 | no clear change |
| Homeowner vacancy rate | 3.9% ±4.2 pts | 1.0% | – |
| Rental vacancy rate | 4.3% ±9.1 pts | 3.3% | – |
| Single-family detached homes | 30.7% ±11.4 pts | 71.8% | – |
| Mobile homes | 67.4% ±12.0 pts | 8.9% | – |
| Built 2020 or later | 1.9% ±2.6 pts | 4.4% | – |
| Built 2010 to 2019 | 24.1% ±22.2 pts | 14.4% | – |
| Built 1939 or earlier | 1.7% ±2.4 pts | 6.9% | – |
| Households with no vehicle | 0.6% ±0.9 pts | 3.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Southmayd building?
Builders took permits for 5 new housing units in Southmayd in 2025 (5 in single-family houses), 4.5 per 1,000 residents against 6.6 across Texas.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Southmayd work and get to work?
69.9% of Southmayd's workers drive alone. The average trip to work takes 28.2 minutes.
| Measure | Southmayd | Grayson County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.2% ±10.1 pts | 62.5% | – |
| Unemployment rate | 0.3% ±0.7 pts | 3.1% | – |
| Drove alone to work | 69.9% ±15.9 pts | 72.5% | – |
| Carpooled | 25.5% ±14.9 pts | 11.6% | – |
| Public transportation | 0.0% ±7.4 pts | 0.4% | – |
| Walked | 0.0% ±7.4 pts | 1.5% | – |
| Worked from home | 2.0% ±1.9 pts | 12.6% | – |
| Mean travel time to work | 28.2 min ±3.9 | 25.8 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Southmayd?
No census tract lies mostly in Southmayd; 2 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 11.01Grayson County | 4,477 | $75,417 |
| Tract 19.01Grayson County | 7,767 | $112,544 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Southmayd) · Census block assignment files
How does Southmayd compare with other places in Texas?
By the Census Bureau's July 2025 estimates, Southmayd is the 9,867th-most populous of the 19,476 U.S. incorporated places that have one and the 778th-most populous of 1,224 in Texas.
Southmayd is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 778th | 1,224 |
Southmayd's figures with every place in Texas (CSV)
Every place in Texas, sortable · Compare Southmayd with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Southmayd?
22 of the 57 figures for Southmayd on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Southmayd are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Southmayd.