Water Districts
61 water districts in Williamson County reported $2,040,395,000 of principal outstanding at the end of fiscal year 2025.
| Issuer? | County? | Principal outstanding, FY 2025? | Debt service outstanding? | Issues? |
|---|---|---|---|---|
| Brushy Creek Regional UA | Williamson | $389,745,000 | $529,679,532 | 15 |
| Williamson County MUD 23 | Williamson | $91,680,000 | $137,228,337 | 10 |
| Brazos RA | Williamson, Shackelford, Stephens, Callahan, Eastland, Erath, Brown, Comanche | $84,630,000 | $120,107,768 | 9 |
| Williamson County MUD 12 | Williamson | $65,490,000 | $94,208,333 | 9 |
| Sonterra MUD | Williamson | $65,020,000 | $86,409,054 | 12 |
| Williamson County MUD 28 | Williamson | $53,940,000 | $81,101,297 | 11 |
| Williamson County MUD 19 | Williamson | $51,745,000 | $74,878,992 | 12 |
| Southeast Williamson County MUD 1 | Williamson | $49,810,000 | $71,023,720 | 7 |
| Siena MUD 1 | Williamson | $49,215,000 | $70,028,326 | 9 |
| Upper Brushy Creek WCID | Williamson | $48,465,000 | $66,542,338 | 1 |
| Williamson County MUD 25 | Williamson | $48,185,000 | $73,846,689 | 6 |
| Williamson County MUD 19A | Williamson | $44,435,000 | $67,163,249 | 9 |
| Williamson County MUD 32 | Williamson | $43,630,000 | $63,836,869 | 8 |
| Jonah Water Special UD | Williamson | $43,120,000 | $76,731,711 | 3 |
| Williamson County MUD 29 | Williamson | $42,210,000 | $71,667,317 | 8 |
| Williamson County MUD 31 | Williamson | $38,725,000 | $58,991,698 | 7 |
| Williamson-Liberty Hill MUD | Williamson | $37,880,000 | $60,944,227 | 8 |
| Cool Water MUD | Williamson | $34,245,000 | $63,194,651 | 3 |
| Leander TODD MUD 1 | Williamson | $33,485,000 | $51,094,521 | 8 |
| Williamson County MUD 22 | Williamson | $33,195,000 | $51,022,817 | 12 |
| West Williamson County MUD 1 | Williamson | $33,080,000 | $45,623,914 | 6 |
| Highlands at Mayfield Ranch MUD | Williamson | $30,785,000 | $45,197,646 | 7 |
| West Williamson County MUD 2 | Williamson | $29,440,000 | $46,918,784 | 7 |
| Siena MUD 2 | Williamson | $29,020,000 | $40,380,346 | 7 |
| Williamson County Water Sewer Irrig & DD 3 | Williamson-Travis | $28,040,000 | $34,200,938 | 6 |
| Williamson County MUD 15 | Williamson | $27,545,000 | $35,463,769 | 7 |
| Palmera Ridge MUD | Williamson | $26,715,000 | $40,021,765 | 8 |
| Leander MUD 2 | Williamson | $24,865,000 | $39,752,425 | 4 |
| Round Rock MUD 1 | Williamson | $22,675,000 | $37,140,765 | 3 |
| Williamson County MUD 13 | Williamson | $22,645,000 | $28,941,864 | 7 |
| Stonewall Ranch MUD | Williamson | $22,545,000 | $34,096,440 | 8 |
| Leander MUD 1 | Williamson | $22,475,000 | $36,223,434 | 4 |
| Williamson County MUD 19C | Williamson | $22,435,000 | $42,365,495 | 5 |
| Northwest Williamson County MUD 2 | Williamson | $21,520,000 | $35,117,144 | 3 |
| Parkside on the River MUD 1 | Williamson | $20,940,000 | $37,194,000 | 3 |
| Williamson County MUD 19E | Williamson | $20,735,000 | $37,736,331 | 2 |
| Round Rock MUD 2 | Williamson | $19,895,000 | $35,359,751 | 6 |
| Parkside at Mayfield Ranch MUD | Williamson | $19,815,000 | $24,948,513 | 6 |
| Williamson County MUD 19F | Williamson | $18,855,000 | $36,074,251 | 3 |
| Williamson County MUD 34 | Williamson | $17,600,000 | $27,370,955 | 5 |
| Williamson County MUD 19B | Williamson | $17,540,000 | $31,858,007 | 4 |
| Paloma Lake MUD 1 | Williamson | $17,190,000 | $21,546,644 | 5 |
| Rancho Del Cielo MUD | Williamson | $16,500,000 | $31,328,433 | 2 |
| Williamson County MUD 11 | Williamson | $16,445,000 | $19,472,600 | 4 |
| Paloma Lake MUD 2 | Williamson | $15,005,000 | $19,664,859 | 7 |
| Williamson County MUD 30 | Williamson | $13,525,000 | $20,869,132 | 5 |
| North San Gabriel MUD 1 | Williamson | $12,550,000 | $21,056,849 | 2 |
| Brushy Creek MUD | Williamson | $12,365,000 | $13,213,652 | 5 |
| Williamson County MUD 51 | Williamson | $12,300,000 | $21,350,968 | 2 |
| CLL MUD 1 | Williamson | $11,725,000 | $21,466,229 | 3 |
| Lone Star Regional WA | Williamson | $9,755,000 | $13,411,874 | 6 |
| Williamson County MUD 10 | Williamson | $8,895,000 | $10,143,000 | 3 |
| Brushy Creek MUD-Defined Area | Williamson | $7,220,000 | $8,639,557 | 4 |
| Williamson County MUD 26 | Williamson | $6,805,000 | $9,264,899 | 3 |
| Block House MUD | Williamson | $5,970,000 | $6,991,550 | 3 |
| North San Gabriel MUD 2 | Williamson | $5,825,000 | $9,108,650 | 2 |
| Berry Creek Highlands MUD | Williamson | $5,700,000 | $9,128,672 | 1 |
| Leander MUD 3 | Williamson | $4,615,000 | $7,693,125 | 1 |
| Walsh Ranch MUD | Williamson | $3,755,000 | $4,212,750 | 2 |
| North Austin MUD 1 | Williamson-Travis | $3,475,000 | $3,930,988 | 1 |
| Watch Hill MUD | Williamson | $2,760,000 | $4,567,575 | 1 |
| Fern Bluff MUD | Williamson | No issues | No issues | No issues |
| Meadows at Chandler Creek MUD | Williamson | No issues | No issues | No issues |
| Ranch at Cypress Creek MUD 1 | Williamson-Travis | No issues | No issues | No issues |
| Vista Oaks MUD | Williamson | No issues | No issues | No issues |
| Williamson-Travis Counties MUD 1 | Williamson-Travis | No issues | No issues | No issues |
EMMA links appear after review.
Source: Local Issuance Fee By Year (updated by the publisher 10/6/2026); Debt Outstanding By Issuance Local By Year (updated by the publisher 9/9/2026). Loaded here 10/8/2026.
Texas fiscal years run September 1 to August 31.
Issuer names are shown as BRB publishes them, spellings included.
Figures are as reported to the agency and have not been independently verified.