Zip Code 77861 - Iola, Texas
Texas | United States
| Primary City | Iola, Texas |
| Area of Zip Code 77861 | 131.2 sq mi |
| Population | 2,468 |
| Male Population | 1,230 (49.8%) |
| Female Population | 1,238 (50.2%) |
| Population change from 1975 to 2020 | +61.5% |
| Population change from 2000 to 2020 | +10.9% |
| Median Age | 40.8 years |
| Male Median Age | 40.7 years |
| Female Median Age | 40.9 years |
| Area Codes | 936 |
| Timezone | Central Daylight Time |
| Coordinates | 30.727411870855548° / -96.0959793442338° |
| Related Zip Codes | 77843, 77844, 77845, 77862, 77863, 77864, 77865, 77866, 77867, 77868 |
Map of Zip Code 77861 - Iola, Texas
Interactive Map
Zip Code 77861 - Iola, Texas Population
Years 1975 to 2030
| Data | 1975 | 1990 | 2000 | 2015 | 2020 | 2025* | 2030* |
|---|---|---|---|---|---|---|---|
| Population | 1,528 | 1,913 | 2,225 | 2,643 | 2,468 | 2,407 | 2,478 |
| Population Density | 4.5 / km² | 5.6 / km² | 6.5 / km² | 7.8 / km² | 7.3 / km² | 7.1 / km² | 7.3 / km² |
* Projected
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up gridRacial demographics for Zip Code 77861 - Iola, Texas
Zip Code 77861 - Iola, Texas Population change from 2000 to 2020
Increase of 10.9% from year 2000 to 2020
| Location | Change since 1975 | Change since 1990 | Change since 2000 |
|---|---|---|---|
| Zip Code 77861 - Iola, Texas | +61.5% | +29% | +10.9% |
| Iola | +51.5% | +4.8% | -14.4% |
| Texas | +128.3% | +74% | +42% |
| United States | — | — | — |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Zip Code 77861 - Iola, Texas Median Age
Median Age: 40.8 years
| Location | Median Age | Median Age (Female) | Median Age (Male) |
|---|---|---|---|
| Zip Code 77861 - Iola, Texas | 40.8 yrs | 40.9 yrs | 40.7 yrs |
| Iola | 36.6 yrs | 34.3 yrs | 39.3 yrs |
| Texas | 33.8 yrs | 34.8 yrs | 32.8 yrs |
| United States | 37.4 yrs | 38.7 yrs | 36.1 yrs |
Sources: CIESIN (Center for International Earth Science Information Network)
Zip Code 77861 Population Density
Population Density: 18.8 / mi²
| Location | Population | Area | Density |
|---|---|---|---|
| Zip Code 77861 | 2,468 | 131.2 sq mi | 18.8 / mi² |
| Iola, Texas | 303 | 1.035 sq mi | 293 / mi² |
| Texas | 29.8 million | 268,596.2 sq mi | 111 / mi² |
| United States | 321.6 million | 3,796,740.8 sq mi | 84.7 / mi² |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Zip Code 77861 - Iola, Texas Historical and Projected Population
Estimated Population from 800 to 2100
Sources:
- JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
- CIESIN (Center for International Earth Science Information Network)
- [Link] Klein Goldewijk, K., Beusen, A., Doelman, J., and Stehfest, E.: Anthropogenic land use estimates for the Holocene – HYDE 3.2, Earth Syst. Sci. Data, 9, 927–953, https://doi.org/10.5194/essd-9-927-2017, 2017.
Area Codes
Percentage Area Codes used by businesses in Zip Code 77861 - Iola, Texas
Stats and Demographics for Zip Code 77861 - Iola, Texas
| Population | 2,468 |
| Households in Zip Code 77861 - Iola, Texas | 934 |
| People per Household | 2.63 |
| Average House Value | $55,600 |
| Income per Household | $33,558 |
Industries
Business Distribution by Industry in Zip Code 77861 - Iola, Texas
| Industry Description | Number of Establishments |
|---|---|
| Churches | 14 |
| Construction of buildings | 3 |
| General contractors | 8 |
| Restaurants | 2 |
| Shopping | 3 |
| Businesses | 905 |
| Estimated total revenue | ~$246.3M |
| Median revenue per business | ~$372.2K |
| Estimated jobs | 525 |
| Estimated payroll | ~$27.1M |
| Industries | Businesses | Total revenue | Median | Jobs |
|---|---|---|---|---|
| Construction | 58 | ~$17.5M | ~$631.6K | 49 |
| Wholesale and retail trade; repair of motor vehicles and motorcycles | 55 | ~$14.8M | ~$433.3K | 67 |
| Other service activities | 50 | ~$7.0M | ~$208.6K | 71 |
| Arts, entertainment and recreation | 36 | ~$3.9M | ~$466.9K | 28 |
| Professional, scientific and technical activities | 18 | ~$3.4M | ~$540.6K | 10 |
| Education | 8 | ~$3.4M | ~$344.7K | 57 |
| Accommodation and food service activities | 16 | ~$2.6M | ~$216.4K | 33 |
Largest businesses by estimated revenue
- Willda Beast — Iola, Texas · ~$116.1M
- Grimes Solar Photovoltaic Plant — Iola, Texas · ~$15.7M
- Blue Jay Solar Plus Storage Plant — Iola, Texas · ~$14.6M
median from the 121 of 905 businesses with estimates Estimate based on strong signals
Zip Code 77861 - Iola, Texas — Revenue trend
Median business revenue by year
| Year | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|
| Median revenue per business | ~$271.1K | ~$189.3K | ~$279.3K | ~$307.3K | ~$323.5K | ~$386.6K |
Revenue modeled for the same 121 businesses across all years. Estimate based on strong signals
Human Development Index (HDI)
Statistic composite index of life expectancy, education, and per capita income.
Source: [Link] Kummu, M., Taka, M. &Guillaume, J. Gridded global datasets for Gross Domestic Product and Human Development Index over 1990–2015. Sci Data 5, 180004 (2018) doi:10.1038/sdata.2018.4
Zip Code 77861 - Iola, Texas Gross Domestic Product (GDP)
GDP per capita, PPP (constant 2017 international $)
| Data | 1990 | 1995 | 2000 | 2005 | 2010 | 2015 | 2020 | 2022 |
|---|---|---|---|---|---|---|---|---|
| GDP per capita | $26,710 | $33,887 | $44,067 | $32,669 | $33,822 | $77,810 | $93,870 | $117,684 |
| Total GDP | $16.7M | $22.8M | $30.6M | $23.5M | $26.3M | $61.7M | $71M | $87.9M |
Source: [Link] Kummu, M., Kosonen, M. & Masoumzadeh Sayyar, S. Downscaled gridded global dataset for gross domestic product (GDP) per capita PPP over 1990–2022. Sci Data 12, 178 (2025) doi:10.1038/s41597-025-04487-x
Zip Code 77861 CO2 Emissions
Carbon Dioxide (CO2) Emissions Per Capita in Tonnes Per Year
| Location | CO2 Emissions | CO2 Emissions Per Capita | CO2 Emissions Intensity |
|---|---|---|---|
| Zip Code 77861 | 50,552 tn | 20.48 tn | 385.2 tons/mi² |
| Iola, Texas | 6,223 tn | 20.54 tn | 6,011 tons/mi² |
| Texas | 528,965,405 tn | 17.76 tn | 1,969.4 tons/mi² |
| United States | 5,664,619,810 tn | 17.62 tn | 1,492 tons/mi² |
Sources: [Link] Moran, D., Kanemoto K; Jiborn, M., Wood, R., Többen, J., and Seto, K.C. (2018) Carbon footprints of 13,000 cities. Environmental Research Letters DOI: 10.1088/1748-9326/aac72a
Zip Code 77861 CO2 Emissions
| 2013 CO2 emissions (tonnes/year) | 50,552 tn |
| 2013 CO2 emissions (tonnes/year) per capita | 20.48 tn |
| 2013 CO2 emissions intensity (tonnes/mi²/year) | 385.2 tons/mi² |
Natural Hazards Risk
Relative risk out of 10
| Hazard | Risk Level |
|---|---|
| Drought | Medium (4) |
| Flood | High (10) |
| Cyclone | Medium (5) |
* Risk, particularly concerning flood or landslide, may not be for the entire area.
Primary City
Iola is a city in Grimes County, Texas, United States on Farm Road 39 and the Burlington-Rock Island Railway, at the headwaters of Ragan Creek in northwest Grimes County. A July 1, 2009 U.S. Census Bureau estimate placed the population at 430.
Iola, Texas Wikipedia Page
About Our Data
The data on this page is estimated using a number of publicly available tools and resources. It is provided without warranty, and could contain inaccuracies. Use at your own risk.