BondGov profile for Williamson County Illinois, compiled from public sources
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Williamson County Illinois
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🌐 Compiled from MSRB EMMA & public records · read-only public record · debt as of Sep 11, 2026 · latest trade Apr 10, 2023 · latest filing Aug 31, 2026
Credit ratings
not compiled
No agency ratings have been compiled for this issuer from EMMA’s per-security feed. This is a coverage gap, not a statement that the issuer is unrated — ratings may be stated on the official statements or the rating agencies’ own sites.
Maturity profile
par maturing by year · as of Sep 2026
Recent activity
rating actions & filings
Annual Financial Information and Operating Data filed
Aug 31, 2026 · Annual Financial Information and Operating Data: Annual Financi…
Audited Financial Statements or ACFR filed
Mar 4, 2026 · Audited Financial Statements or ACFR: Independent Auditors Rep…
Annual Financial Information and Operating Data filed
Sep 4, 2025 · Annual Financial Information and Operating Data: Annual Financi…
Annual Financial Information and Operating Data filed
Aug 22, 2024 · Annual Financial Information and Operating Data: Annual Financi…
Audited Financial Statements or ACFR filed
May 7, 2024 · Audited Financial Statements or ACFR: Independent Auditors Rep…
Annual Financial Information and Operating Data filed
Apr 15, 2024 · Annual Financial Information and Operating Data: Annual Financi…
In context
Larger than 75% of IL issuers by debt outstanding · #474 of 1898
Debt overview
EMMA-derived
Outstanding par (EMMA est.)—
Securities18
Callable33%
Debt service
estimated principal + interest by year
Estimated at current coupons — principal at maturity plus a full year’s interest on bonds still outstanding. Compiled from EMMA security data; not a substitute for the official statement.
Outstanding securities
18
Outstanding securities for Williamson County Illinois
CUSIP
Series / description
Coupon
Maturity
Outstanding
Ratings
First call
969737CY9
WILLIAMSON CNTY ILL GO REF BDS 2021 (IL)*
3.0%
Dec 1, 2026
$1,050,000
—
—
969737CZ6
WILLIAMSON CNTY ILL GO REF BDS 2021 (IL)*
3.0%
Dec 1, 2027
$1,085,000
—
—
969737BX2
WILLIAMSON CNTY ILL TAXABLE GO ALT REV BDS 2010B (IL)*
5.82%
Dec 1, 2027
$1,580,000
—
—
969737DA0
WILLIAMSON CNTY ILL GO REF BDS 2021 (IL)*
3.0%
Dec 1, 2028
$1,120,000
—
—
969737CK9
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2029
$155,000
—
—
969737DB8
WILLIAMSON CNTY ILL GO REF BDS 2021 (IL)*
3.0%
Dec 1, 2029
$995,000
—
—
969737BY0
WILLIAMSON CNTY ILL TAXABLE GO ALT REV BDS 2010B (IL)*
6.28%
Dec 1, 2030
$2,625,000
—
—
969737CL7
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2030
$1,190,000
—
—
969737CM5
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2031
$1,225,000
—
Dec. 1, 2030
969737CN3
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2032
$1,260,000
—
Dec. 1, 2030
969737BZ7
WILLIAMSON CNTY ILL TAXABLE GO ALT REV BDS 2010B (IL)*
6.36%
Dec 1, 2033
$2,960,000
—
—
969737CP8
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2033
$1,300,000
—
Dec. 1, 2030
969737CQ6
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2034
$1,340,000
—
Dec. 1, 2030
969737CR4
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2035
$1,380,000
—
Dec. 1, 2030
969737CS2
WILLIAMSON CNTY ILL GO REF BDS 2020 (IL)*
3.0%
Dec 1, 2036
$890,000
—
Dec. 1, 2030
969737CA1
WILLIAMSON CNTY ILL TAXABLE GO ALT REV BDS 2010B (IL)*
6.43%
Dec 1, 2037
$4,035,000
—
—
9697378F1
WILLIAMSON CNTY ILL TAXABLE GO ALT REV BDS 2010A (IL)*
6.46%
Dec 1, 2038
$1,795,000
—
—
969737BG9
WILLIAMSON CNTY ILL TAXABLE GO ALT REV BDS 2010A (IL)*
6.63%
Dec 1, 2040
$4,125,000
—
—
Market activity
EMMA · secondary trades · latest Apr 10, 2023 · no prints in 90 days
Each dot is a reported secondary trade — yield by trade date, sized by par, colored by trade side. Hover for detail.
Annual financial filings posted to the MSRB’s EMMA, newest first — a reporting-cadence signal. Click a year to open the filing.
8 continuing-disclosure filings compiled
Latest filing within the past year · latest posting 2026-08-31
✓ Issuer website on file
Counts what BondGov has compiled from the MSRB’s EMMA — a coverage fact, not a compliance rating or a days-late claim. Contact routes show as on file only; the address itself is never published here. Verify on EMMA ↗
Standing
as of Sep 11, 2026
What the public record shows about this issuer’s disclosure practice. Compiled from the MSRB’s EMMA and from award letters governments record themselves. MuniPro confers no credential and issues no rating.
Credentials on record
Conferred by GFOA, recorded from the award letter. Never inferred.
Certificate of Achievement for Excellence in Financial Reporting
No receipt on file
Distinguished Budget Presentation Award
No receipt on file
Popular Annual Financial Reporting Award
No receipt on file
Nothing recorded here means nothing has been recorded — not that an award was withheld.
Dated obligations
Filings a law or contract puts a date on.
Not measured
MuniPro does not hold this issuer’s own continuing-disclosure undertaking date, so no filing is called late here. Why →
Record quality
Disclosure practice — not an assessment of creditworthiness.
Annual reporting compiled
1 of 2
1 of 2 reporting years (2024–2025) have an annual financial filing compiled from the MSRB’s EMMA. The denominator is MuniPro’s 2-year reading window — it is NOT a filing obligation, and a missing year here means no filing was compiled, not that one was owed and skipped.
Record freshness
Within the past year
The newest continuing-disclosure filing MuniPro has compiled for this issuer was posted 11 days ago. This is the age of the public record — it is not a lateness claim, because MuniPro does not hold the date this issuer’s undertaking sets.
Filing timeliness
Not measured
Timeliness needs the date this issuer’s own continuing-disclosure undertaking sets. MuniPro does not hold it, and will not substitute a generic interval.
Standing describes disclosure practice — not an assessment of creditworthiness. It is not a rating, a rank against other governments, or a MuniPro credential.
See the full computation →
Frequently asked questions
Outstanding securities, official statements, and continuing-disclosure filings are compiled from the MSRB’s EMMA system and other public records. This profile is auto-compiled and has not yet been claimed by the issuer.
No. BondGov aggregates public information for transparency. Nothing here is an offer, solicitation, or recommendation. Consult the official statement and your own advisors before investing.