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County · Debt explorer

Williamson County

Print county brief1 page, fiscal year 2025

Williamson County's 61 Water Districts owed $2.0 billion in principal outstanding at the end of fiscal year 2025, 7th of 109 counties and 7th of 12. Of that, $116.1 million is owed by 3 issuers that also serve other counties. Figures as loaded 10/17/2026.

Showing Total principal outstanding for Water Districts, fiscal year 2025. How it is computed: principal outstanding at the fiscal year end, summed over the local governments attributed to the county; computed here from BRB's tables. Method.

Total principal outstanding
$2,040,395,000
Rank
7th of 109
Rank in its size band
7th of 12
Population (county government's row)
727,480
Of which multi-county issuers
$116,145,000

Every bond issue in Williamson County in the bond database

Debt by government type, fiscal year 2025

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Principal outstanding by government type; the table below gives the figures.Water Districts: $2.0 billion
Type?Issuers?Principal outstanding?Share?
Water DistrictsIssuers61Principal outstanding$2,040,395,000Share100.0%
TotalIssuers61Principal outstanding$2,040,395,000Share100.0%

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Type?Issuers?Principal outstanding?Share?
Water DistrictsIssuers61Principal outstanding$2,040,395,000Share100.0%
TotalIssuers61Principal outstanding$2,040,395,000Share100.0%

Governments attributed to Williamson County

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Each counts here because Williamson is the first county BRB lists for it. Per resident uses the government's own reported population, where it reports one.

Issuer ?Type ?Principal outstanding ?Per resident ?
Brushy Creek Regional UAWater Districts$389,745,000$1,462
Williamson County MUD 23Water Districts$91,680,000$15,318
Brazos RA
also lists Shackelford, Stephens, Callahan, Eastland, Erath, Brown, Comanche		Water Districts$84,630,000$31
Williamson County MUD 12Water Districts$65,490,000$14,381
Sonterra MUDWater Districts$65,020,000$4,464
Williamson County MUD 28Water Districts$53,940,000$29,236
Williamson County MUD 19Water Districts$51,745,000$9,936
Southeast Williamson County MUD 1Water Districts$49,810,000$9,549
Siena MUD 1Water Districts$49,215,000$9,305
Upper Brushy Creek WCIDWater Districts$48,465,000$121
Williamson County MUD 25Water Districts$48,185,000$15,077
Williamson County MUD 19AWater Districts$44,435,000$12,707
Williamson County MUD 32Water Districts$43,630,000$14,442
Jonah Water Special UDWater Districts$43,120,000$2,199
Williamson County MUD 29Water Districts$42,210,000$24,371
Williamson County MUD 31Water Districts$38,725,000$13,185
Williamson-Liberty Hill MUDWater Districts$37,880,000$13,875
Cool Water MUDWater Districts$34,245,000$12,152
Leander TODD MUD 1Water Districts$33,485,000$7,319
Williamson County MUD 22Water Districts$33,195,000$15,075
West Williamson County MUD 1Water Districts$33,080,000$16,606
Highlands at Mayfield Ranch MUDWater Districts$30,785,000$9,623
West Williamson County MUD 2Water Districts$29,440,000$18,006
Siena MUD 2Water Districts$29,020,000$7,489
Williamson County Water Sewer Irrig & DD 3
also lists Travis		Water Districts$28,040,000$4,832
Williamson County MUD 15Water Districts$27,545,000$6,613
Palmera Ridge MUDWater Districts$26,715,000$9,140
Leander MUD 2Water Districts$24,865,000$17,113
Round Rock MUD 1Water Districts$22,675,000$48,659
Williamson County MUD 13Water Districts$22,645,000$5,078
Stonewall Ranch MUDWater Districts$22,545,000$9,672
Leander MUD 1Water Districts$22,475,000$14,491
Williamson County MUD 19CWater Districts$22,435,000$17,139
Northwest Williamson County MUD 2Water Districts$21,520,000$22,772
Parkside on the River MUD 1Water Districts$20,940,000$19,607
Williamson County MUD 19EWater Districts$20,735,000$13,588
Round Rock MUD 2Water Districts$19,895,000$11,906
Parkside at Mayfield Ranch MUDWater Districts$19,815,000$5,086
Williamson County MUD 19FWater Districts$18,855,000$12,731
Williamson County MUD 34Water Districts$17,600,000$11,710
Williamson County MUD 19BWater Districts$17,540,000$23,293
Paloma Lake MUD 1Water Districts$17,190,000$4,616
Rancho Del Cielo MUDWater Districts$16,500,000$6,735
Williamson County MUD 11Water Districts$16,445,000$3,533
Paloma Lake MUD 2Water Districts$15,005,000$5,490
Williamson County MUD 30Water Districts$13,525,000$16,698
North San Gabriel MUD 1Water Districts$12,550,000$21,344
Brushy Creek MUDWater Districts$12,365,000$574
Williamson County MUD 51Water Districts$12,300,000$36,176
CLL MUD 1Water Districts$11,725,000$10,450
Lone Star Regional WAWater Districts$9,755,000$299
Williamson County MUD 10Water Districts$8,895,000$2,257
Brushy Creek MUD-Defined AreaWater Districts$7,220,000$335
Williamson County MUD 26Water Districts$6,805,000$16,886
Block House MUDWater Districts$5,970,000$791
North San Gabriel MUD 2Water Districts$5,825,000$11,467
Berry Creek Highlands MUDWater Districts$5,700,000Not reported
Leander MUD 3Water Districts$4,615,000$6,245
Walsh Ranch MUDWater Districts$3,755,000$4,508
North Austin MUD 1
also lists Travis		Water Districts$3,475,000$319
Watch Hill MUDWater Districts$2,760,000$7,095

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Issuer ?Type ?Principal outstanding ?Per resident ?
Brushy Creek Regional UAWater Districts$389,745,000$1,462
Williamson County MUD 23Water Districts$91,680,000$15,318
Brazos RA
also lists Shackelford, Stephens, Callahan, Eastland, Erath, Brown, Comanche		Water Districts$84,630,000$31
Williamson County MUD 12Water Districts$65,490,000$14,381
Sonterra MUDWater Districts$65,020,000$4,464
Williamson County MUD 28Water Districts$53,940,000$29,236
Williamson County MUD 19Water Districts$51,745,000$9,936
Southeast Williamson County MUD 1Water Districts$49,810,000$9,549
Siena MUD 1Water Districts$49,215,000$9,305
Upper Brushy Creek WCIDWater Districts$48,465,000$121
Williamson County MUD 25Water Districts$48,185,000$15,077
Williamson County MUD 19AWater Districts$44,435,000$12,707
Williamson County MUD 32Water Districts$43,630,000$14,442
Jonah Water Special UDWater Districts$43,120,000$2,199
Williamson County MUD 29Water Districts$42,210,000$24,371
Williamson County MUD 31Water Districts$38,725,000$13,185
Williamson-Liberty Hill MUDWater Districts$37,880,000$13,875
Cool Water MUDWater Districts$34,245,000$12,152
Leander TODD MUD 1Water Districts$33,485,000$7,319
Williamson County MUD 22Water Districts$33,195,000$15,075
West Williamson County MUD 1Water Districts$33,080,000$16,606
Highlands at Mayfield Ranch MUDWater Districts$30,785,000$9,623
West Williamson County MUD 2Water Districts$29,440,000$18,006
Siena MUD 2Water Districts$29,020,000$7,489
Williamson County Water Sewer Irrig & DD 3
also lists Travis		Water Districts$28,040,000$4,832
Williamson County MUD 15Water Districts$27,545,000$6,613
Palmera Ridge MUDWater Districts$26,715,000$9,140
Leander MUD 2Water Districts$24,865,000$17,113
Round Rock MUD 1Water Districts$22,675,000$48,659
Williamson County MUD 13Water Districts$22,645,000$5,078
Stonewall Ranch MUDWater Districts$22,545,000$9,672
Leander MUD 1Water Districts$22,475,000$14,491
Williamson County MUD 19CWater Districts$22,435,000$17,139
Northwest Williamson County MUD 2Water Districts$21,520,000$22,772
Parkside on the River MUD 1Water Districts$20,940,000$19,607
Williamson County MUD 19EWater Districts$20,735,000$13,588
Round Rock MUD 2Water Districts$19,895,000$11,906
Parkside at Mayfield Ranch MUDWater Districts$19,815,000$5,086
Williamson County MUD 19FWater Districts$18,855,000$12,731
Williamson County MUD 34Water Districts$17,600,000$11,710
Williamson County MUD 19BWater Districts$17,540,000$23,293
Paloma Lake MUD 1Water Districts$17,190,000$4,616
Rancho Del Cielo MUDWater Districts$16,500,000$6,735
Williamson County MUD 11Water Districts$16,445,000$3,533
Paloma Lake MUD 2Water Districts$15,005,000$5,490
Williamson County MUD 30Water Districts$13,525,000$16,698
North San Gabriel MUD 1Water Districts$12,550,000$21,344
Brushy Creek MUDWater Districts$12,365,000$574
Williamson County MUD 51Water Districts$12,300,000$36,176
CLL MUD 1Water Districts$11,725,000$10,450
Lone Star Regional WAWater Districts$9,755,000$299
Williamson County MUD 10Water Districts$8,895,000$2,257
Brushy Creek MUD-Defined AreaWater Districts$7,220,000$335
Williamson County MUD 26Water Districts$6,805,000$16,886
Block House MUDWater Districts$5,970,000$791
North San Gabriel MUD 2Water Districts$5,825,000$11,467
Berry Creek Highlands MUDWater Districts$5,700,000Not reported
Leander MUD 3Water Districts$4,615,000$6,245
Walsh Ranch MUDWater Districts$3,755,000$4,508
North Austin MUD 1
also lists Travis		Water Districts$3,475,000$319
Watch Hill MUDWater Districts$2,760,000$7,095
  1. Brushy Creek Regional UAWater DistrictsPrincipal $389,745,000Per resident: $1,462
  2. Williamson County MUD 23Water DistrictsPrincipal $91,680,000Per resident: $15,318
  3. Brazos RAWater Districts; also lists Shackelford, Stephens, Callahan, Eastland, Erath, Brown, ComanchePrincipal $84,630,000Per resident: $31
  4. Williamson County MUD 12Water DistrictsPrincipal $65,490,000Per resident: $14,381
  5. Sonterra MUDWater DistrictsPrincipal $65,020,000Per resident: $4,464
  6. Williamson County MUD 28Water DistrictsPrincipal $53,940,000Per resident: $29,236
  7. Williamson County MUD 19Water DistrictsPrincipal $51,745,000Per resident: $9,936
  8. Southeast Williamson County MUD 1Water DistrictsPrincipal $49,810,000Per resident: $9,549
  9. Siena MUD 1Water DistrictsPrincipal $49,215,000Per resident: $9,305
  10. Upper Brushy Creek WCIDWater DistrictsPrincipal $48,465,000Per resident: $121
  11. Williamson County MUD 25Water DistrictsPrincipal $48,185,000Per resident: $15,077
  12. Williamson County MUD 19AWater DistrictsPrincipal $44,435,000Per resident: $12,707
  13. Williamson County MUD 32Water DistrictsPrincipal $43,630,000Per resident: $14,442
  14. Jonah Water Special UDWater DistrictsPrincipal $43,120,000Per resident: $2,199
  15. Williamson County MUD 29Water DistrictsPrincipal $42,210,000Per resident: $24,371
  16. Williamson County MUD 31Water DistrictsPrincipal $38,725,000Per resident: $13,185
  17. Williamson-Liberty Hill MUDWater DistrictsPrincipal $37,880,000Per resident: $13,875
  18. Cool Water MUDWater DistrictsPrincipal $34,245,000Per resident: $12,152
  19. Leander TODD MUD 1Water DistrictsPrincipal $33,485,000Per resident: $7,319
  20. Williamson County MUD 22Water DistrictsPrincipal $33,195,000Per resident: $15,075
  21. West Williamson County MUD 1Water DistrictsPrincipal $33,080,000Per resident: $16,606
  22. Highlands at Mayfield Ranch MUDWater DistrictsPrincipal $30,785,000Per resident: $9,623
  23. West Williamson County MUD 2Water DistrictsPrincipal $29,440,000Per resident: $18,006
  24. Siena MUD 2Water DistrictsPrincipal $29,020,000Per resident: $7,489
  25. Williamson County Water Sewer Irrig & DD 3Water Districts; also lists TravisPrincipal $28,040,000Per resident: $4,832
  26. Williamson County MUD 15Water DistrictsPrincipal $27,545,000Per resident: $6,613
  27. Palmera Ridge MUDWater DistrictsPrincipal $26,715,000Per resident: $9,140
  28. Leander MUD 2Water DistrictsPrincipal $24,865,000Per resident: $17,113
  29. Round Rock MUD 1Water DistrictsPrincipal $22,675,000Per resident: $48,659
  30. Williamson County MUD 13Water DistrictsPrincipal $22,645,000Per resident: $5,078
  31. Stonewall Ranch MUDWater DistrictsPrincipal $22,545,000Per resident: $9,672
  32. Leander MUD 1Water DistrictsPrincipal $22,475,000Per resident: $14,491
  33. Williamson County MUD 19CWater DistrictsPrincipal $22,435,000Per resident: $17,139
  34. Northwest Williamson County MUD 2Water DistrictsPrincipal $21,520,000Per resident: $22,772
  35. Parkside on the River MUD 1Water DistrictsPrincipal $20,940,000Per resident: $19,607
  36. Williamson County MUD 19EWater DistrictsPrincipal $20,735,000Per resident: $13,588
  37. Round Rock MUD 2Water DistrictsPrincipal $19,895,000Per resident: $11,906
  38. Parkside at Mayfield Ranch MUDWater DistrictsPrincipal $19,815,000Per resident: $5,086
  39. Williamson County MUD 19FWater DistrictsPrincipal $18,855,000Per resident: $12,731
  40. Williamson County MUD 34Water DistrictsPrincipal $17,600,000Per resident: $11,710
  41. Williamson County MUD 19BWater DistrictsPrincipal $17,540,000Per resident: $23,293
  42. Paloma Lake MUD 1Water DistrictsPrincipal $17,190,000Per resident: $4,616
  43. Rancho Del Cielo MUDWater DistrictsPrincipal $16,500,000Per resident: $6,735
  44. Williamson County MUD 11Water DistrictsPrincipal $16,445,000Per resident: $3,533
  45. Paloma Lake MUD 2Water DistrictsPrincipal $15,005,000Per resident: $5,490
  46. Williamson County MUD 30Water DistrictsPrincipal $13,525,000Per resident: $16,698
  47. North San Gabriel MUD 1Water DistrictsPrincipal $12,550,000Per resident: $21,344
  48. Brushy Creek MUDWater DistrictsPrincipal $12,365,000Per resident: $574
  49. Williamson County MUD 51Water DistrictsPrincipal $12,300,000Per resident: $36,176
  50. CLL MUD 1Water DistrictsPrincipal $11,725,000Per resident: $10,450

Rows 1–50 of 61

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Also serve Williamson County

$116,145,000 of this county's $2,040,395,000 (6%) is owed by 3 issuers attributed here that list other counties too. No issuer counted in another county lists Williamson County.

Over the years

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Principal outstanding at each fiscal year end; the table below gives the figures.$552.5million2016$605.5million2017$701.5million2018$804.2million2019$907.9million2020$986.9million2021$1.3billion2022$1.6billion2023$1.8billion2024$2.0billion2025
2016: $552.5 million; 2025: $2.0 billion
Fiscal year?Principal outstanding?Issuers?Population?
Fiscal year2025Principal outstanding$2,040,395,000Issuers61Population727,480
Fiscal year2024Principal outstanding$1,818,283,313Issuers58Population697,191
Fiscal year2023Principal outstanding$1,571,300,062Issuers55Population671,418
Fiscal year2022Principal outstanding$1,279,855,220Issuers46Population643,026
Fiscal year2021Principal outstanding$986,940,571Issuers44Population609,017
Fiscal year2020Principal outstanding$907,866,354Issuers42Population590,551
Fiscal year2019Principal outstanding$804,212,686Issuers41Population566,719
Fiscal year2018Principal outstanding$701,478,940Issuers37Population547,545
Fiscal year2017Principal outstanding$605,539,761Issuers33Population528,718
Fiscal year2016Principal outstanding$552,528,529Issuers30Population508,514

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Fiscal year?Principal outstanding?Issuers?Population?
Fiscal year2025Principal outstanding$2,040,395,000Issuers61Population727,480
Fiscal year2024Principal outstanding$1,818,283,313Issuers58Population697,191
Fiscal year2023Principal outstanding$1,571,300,062Issuers55Population671,418
Fiscal year2022Principal outstanding$1,279,855,220Issuers46Population643,026
Fiscal year2021Principal outstanding$986,940,571Issuers44Population609,017
Fiscal year2020Principal outstanding$907,866,354Issuers42Population590,551
Fiscal year2019Principal outstanding$804,212,686Issuers41Population566,719
Fiscal year2018Principal outstanding$701,478,940Issuers37Population547,545
Fiscal year2017Principal outstanding$605,539,761Issuers33Population528,718
Fiscal year2016Principal outstanding$552,528,529Issuers30Population508,514

How these figures are made

Total principal outstanding

principal outstanding at the fiscal year end, summed over the local governments attributed to the county; computed here from BRB's tables for fiscal year 2025. It has no denominator.

Which governments count here

BRB's County field lists every county an issuer serves and gives no shares. An issuer's debt counts in its home county, the first county listed for it, so each dollar counts once statewide. Of Williamson County's $2,040,395,000, $116,145,000 is owed by issuers that list other counties too. Issuers that list Williamson County but count in another are under "Also serve Williamson County". Per resident in the issuer list uses each government's own reported population, where it reports one.

Not reported means no government of the chosen type in the county reported the amount that year, or the denominator was not reported. It is never shown as zero.

Fiscal years: Texas fiscal years run September 1 to August 31. Local governments report at the end of their own fiscal year, as BRB's tables do.

The full method, with the class breaks and the size bands, is on the explorer's main page. Sources are listed below.

EMMA links are added as each issue is matched.

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 10/17/2026.

Texas fiscal years run September 1 to August 31.

Issuer names are shown as published, without source footnote letters.

Figures are as reported to the agency and have not been independently verified.