This is a MuniPro demonstration of a redesigned Texas Bond Review Board website. It is not the official BRB site: nothing filed here reaches BRB, and the email addresses shown are BRB's own. The official site is brb.texas.gov.

Water district · Williamson County · id 246-228-04

Sonterra MUD

$65,020,000 of principal outstanding on 12 issues at the end of fiscal year 2025.

Principal outstanding
$65.02 million
Fiscal year 2025

$65,020,000

Interest still to be paid
$21.39 million
Fiscal year 2025

$21,389,054

Total debt service outstanding
$86.41 million
Fiscal year 2025

$86,409,054

Issues outstanding
12
Fiscal year 2025
Tax rate (total, per $100 of value)
0.7035
Fiscal year 2025
Taxable value
$1.28 billion
Fiscal year 2025

$1,277,955,016

Tax-supported principal to taxable value
5.09%
Fiscal year 2025

Computed here from the reported figures.

Principal per resident
$4,464
Fiscal year 2025

Computed here from the reported figures (population 14,567).

Debt outstanding by fiscal year

Download CSV
Principal outstanding at each fiscal year end; the table below gives the figures.FY 2016: $19,339,9892016FY 2017: $24,249,9892017FY 2018: $30,255,2232018FY 2019: $36,452,6862019FY 2020: $49,111,3542020FY 2021: $52,160,5712021FY 2022: $61,810,2202022FY 2023: $66,670,0622023FY 2024: $64,493,3132024FY 2025: $65,020,0002025
Fiscal yearPrincipalInterestTotal debt serviceIssuesTax rateTaxable value
2025$65,020,000$21,389,054$86,409,054120.7035$1,277,955,016
2024$64,493,313$23,321,703$87,815,016110.7035$1,212,588,133
2023$66,670,062$25,883,043$92,553,105120.7150$1,058,427,553
2022$61,810,220$24,997,559$86,807,779110.9475$723,935,704
2021$52,160,571$23,323,446$75,484,016100.9475$548,496,724
2020$49,111,354$24,067,474$73,178,82890.9475$421,691,542
2019$36,452,686$17,670,481$54,123,16780.9475$340,665,012
2018$30,255,223$16,289,516$46,544,73980.9500$268,759,931
2017$24,249,989$14,225,572$38,475,56170.9500$219,767,729
2016$19,339,989$11,931,451$31,271,44060.9500$176,936,995

Issues outstanding, fiscal year 2025

Download CSV
IssueClosedPledgePurposeFinal maturityPrincipalInterest
Unl Tax & Rev Bonds Ser 2020Apr 22, 2020Tax-supported (general obligation)Water and sewerAug 15, 2044$12,340,000$5,307,525
Unl Tax & Rev Bonds Ser 2021Nov 17, 2021Tax-supported (general obligation)Water and sewerAug 15, 2046$10,120,000$3,058,919
Unl Tax & Rev Bonds Ser 2022Dec 20, 2022Tax-supported (general obligation)Water and sewerAug 15, 2043$6,295,000$2,767,369
Unl Tax & Rev Bonds Ser 2014Dec 16, 2014Tax-supported (general obligation)Water and sewerAug 15, 2039$5,645,000$1,707,879
Unl Tax & Rev Bonds Ser 2018Jan 25, 2018Tax-supported (general obligation)Water and sewerAug 15, 2042$5,380,000$1,751,350
Unl Tax & Rev Bonds Ser 2019Apr 30, 2019Tax-supported (general obligation)Water and sewerAug 15, 2043$4,955,000$1,659,206
Unl Tax & Rev Bonds Ser 2016Nov 22, 2016Tax-supported (general obligation)Water and sewerAug 15, 2041$4,705,000$1,720,075
Unl Tax & Rev Bonds Ser 2020AOct 21, 2020Tax-supported (general obligation)Water and sewerAug 15, 2045$3,950,000$1,034,894
Unl Tax & Rev Bonds Ser 2015Sep 10, 2015Tax-supported (general obligation)Water and sewerAug 15, 2040$3,615,000$1,152,413
Unl Tax Ref Bonds Ser 2020Jun 2, 2020Tax-supported (general obligation)RefundingAug 15, 2036$3,340,000$413,613
Unl Tax Park Bonds Ser 2025Feb 20, 2025Tax-supported (general obligation)RecreationAug 15, 2034$2,820,000$517,350
Unl Tax & Rev Ref Bonds Ser 2015Feb 19, 2015Tax-supported (general obligation)RefundingAug 15, 2034$1,855,000$298,461

Earlier issues

Issues last reported before fiscal year 2025: repaid, refunded or matured.

Source: Local Issuance Fee By Year (updated by the publisher Sep 9, 2026); Debt Outstanding By Issuance Local By Year (updated by the publisher Sep 9, 2026). Loaded here Oct 3, 2026.

Texas fiscal years run September 1 to August 31.

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