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2026 Regional Water Plan Board-Adopted Population and Municipal Demand Projections
The data on this website supports the 6th regional water planning cycle. Population projections utilize the Texas Demographic Center's 2022 county-level population projections and Regional Water Planning Groups (RWPGs) have reviewed and provided input on the utility and county-level population projections. Municipal water demand projections are a function of the population projections, baseline Gallons per Capita per Day (GPCD), and projected plumbing code savings. These projections were adopted by the Board on November 9, 2023. Historical data was developed using the TWDB's Water Use Survey, the Texas Water Service Boundary Viewer, and the U.S. Census Bureau county-level population estimates and counts.
Download data and methodology documents on the Download Data tab.
To view non-municipal water demand projections data, navigate to non-municipal water demand projections.
Population and Municipal Water Demand Projections Interactive Data
To view the interactive data: Use the left side pane to navigate to different views. Use the drop-down filters to view data by Region, County, or Water User Group, as applicable.
All reports are now only available in SARA
How to access water demand projection data
Water demand projection reports have been added to the Texas Water Development Board Secure Agency Reporting Application. Use the global search filter located at the top of the reporting application and filter the reports by the text 'projections' to see all reports associated with projections. If needing a specific report, filter by Report ID using the reference table below to find the affiliated SARA Report ID for that report.
| SARA Report ID | Report Name | Report Description |
|---|---|---|
| 85 | Population Projections by Water User Group | 2030-2080 population projections by utilities and county-other rural areas. |
| 82 | Population Projections: Region and State Total | 2030-2080 regional and county population totals for each of the 16 regions and the state of Texas. |
| 83 | Population Projections by County | 2030-2080 population projections by county. |
| 84 | Population Projections by Regional Water Planning Group | 2030-2080 population projections by planning region for counties, utilities, and county-other rural areas by river basin. |
| 89 | Water Demand Projections by Municipal Water User Group | 2030-2080 municipal water demand projections (acre-feet) by utilities and county-other rural areas. |
| 90 | Water Demand Projections by Water Use Category | 2030-2080 water demand projections (acre-feet) by category, region, county, and WUG. |
| 86 | Water Demand Projections: Texas Total Water Demand Projections by Category | 2030-2080 state total water demand (acre-feet) by category. |
| 88 | Water Demand Projections by Regional Water Planning Group | 2030-2080 water demand projections (acre-feet) by planning region for counties, utilities, and county-other rural areas by river basin. |
| Additional Projections Data and Information | Website |
|---|---|
| 2026 RWP Population and Municipal Water Demand Projections Methodology | Population and Municipal Projections Methodology Summary for the 2026 RWPs |
| 2026 RWP Population and Municipal Water Demand Projections Process | Population Projections Process for Regional Water Planning |
| 2026 RWP Water User Group Boundaries | 2026 RWP Municipal Water User Group Boundaries Shapefile |
| TWDB Database Report Application | View other TWDB Water Use Data Reports |
If you have any questions or comments about the information provided in these pages please contact Projections and Socioeconomic Analysis Department
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