Compiled from MSRB EMMA & public records · read-only public record · debt as of Sep 12, 2026 · latest trade Sep 11, 2026 · latest filing Aug 6, 2025
Credit ratings
not compiledNo 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 2026Recent activity
rating actions & filingsAudited Financial Statements or ACFR filed
Aug 6, 2025 · Audited Financial Statements or ACFR: 2024 ACFR - Boulder Count…
Annual Financial Information and Operating Data filed
Aug 6, 2025 · Annual Financial Information and Operating Data: 2024 Annual Op…
Annual Financial Information and Operating Data filed
Sep 6, 2024 · Annual Financial Information and Operating Data: 2023 Annual Op…
Audited Financial Statements or ACFR filed
Sep 3, 2024 · Audited Financial Statements or ACFR: 2023 ACFR - Boulder Count…
Annual Financial Information and Operating Data filed
Sep 27, 2023 · Annual Financial Information and Operating Data: 2022 Annual Op…
Official statement posted
Mar 17, 2020 · OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS, SERIES 2020A
Debt overview
EMMA-derivedOutstanding par (EMMA est.)—
Securities28
Callable14%
Outstanding securities
28Market activity
EMMA · secondary trades · latest Sep 11, 2026Each dot is a reported secondary trade — yield by trade date, sized by par, colored by trade side. Hover for detail.
Trade dateSecurityPriceYieldSizeSide
Sep 11
10146RJV7
105.98
3.33%
5,000
Inter-Dealer Trade
Sep 11
10146RJV7
105.98
3.33%
5,000
Inter-Dealer Trade
Sep 11
10146RJV7
106.18
3.27%
5,000
Customer Bought
Sep 8
10146RJF2
99.99
4.01%
50,000
Customer Bought
Sep 8
10146RJF2
99.90
4.12%
50,000
Customer Sold
Sep 3
10146RHT4
99.90
3.05%
30,000
Customer Bought
Sep 3
10146RHT4
99.90
3.05%
30,000
Inter-Dealer Trade
Trade prints reported to the MSRB — a live market signal a manual issuer page cannot show.
13 callable securities carry a stated call price — refunding candidates as rates move.
Document library
36 documents · sourced from EMMA & the issuer
B
Financial
2024 ACFR - Boulder County, CO
Financial ReportsAug 2025
FinancialEMMA · disclosure
B
Annual Data
2024 Annual Operating Data
Annual / Operating DataAug 2025
Annual DataEMMA · disclosure
B
Annual Data
2023 Annual Operating Data
Annual / Operating DataSep 2024
Annual DataEMMA · disclosure
B
Financial
2023 ACFR - Boulder County, CO
Financial ReportsSep 2024
FinancialEMMA · disclosure
B
Annual Data
2022 Annual Operating Data
Annual / Operating DataSep 2023
Annual DataEMMA · disclosure
B
Financial
2022 ACFR - Boulder County, CO
Financial ReportsAug 2023
FinancialEMMA · disclosure
B
Financial
2021 ACFR - Boulder County, CO
Financial ReportsJan 2023
FinancialEMMA · disclosure
B
Financial
2021 Notice of Filing Unaudited Financial Statements - Boulder County, CO
Financial ReportsSep 2022
FinancialEMMA · disclosure
B
Financial
2021 Unaudited Financial Statements - Boulder County, CO
Financial ReportsSep 2022
FinancialEMMA · disclosure
B
Annual Data
2021 Annual Operating Data
Annual / Operating DataSep 2022
Annual DataEMMA · disclosure
B
Financial
2020 ACFR - Boulder County, CO
Financial ReportsMay 2022
FinancialEMMA · disclosure
B
Financial
2020 Unaudited Financial Statements - Boulder County, CO
Financial ReportsSep 2021
FinancialEMMA · disclosure
B
Annual Data
2020 Annual Operating Data
Annual / Operating DataSep 2021
Annual DataEMMA · disclosure
B
Financial
2020 Notice of Filing Unaudited Financial Statements
Financial ReportsSep 2021
FinancialEMMA · disclosure
B
Other
Other Financial / Operating Data: Incorporate OS by Reference
Other FilingsJun 2021
OtherEMMA · disclosure
B
Financial
2019 Comprehensive Annual Financial Report - Boulder County, CO
Financial ReportsMar 2021
FinancialEMMA · disclosure
B
Financial
2019 Unaudited Financial Statements - Boulder County, CO
Financial ReportsSep 2020
FinancialEMMA · disclosure
B
Financial
2019 Notice of Filing Unaudited Financial Statements
Financial ReportsSep 2020
FinancialEMMA · disclosure
B
Annual Data
2019 Annual Operating Data
Annual / Operating DataSep 2020
Annual DataEMMA · disclosure
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS, SERIES 2020A
Official StatementsMar 2020
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS: $27,585,000 REFUNDING SERIES 2016B
Official StatementsAug 2016
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS, REFUNDING SERIES 2016A
Official StatementsAug 2016
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS: $27,585,000 REFUNDING SERIES 2016B
Official StatementsAug 2016
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS, REFUNDING SERIES 2016A
Official StatementsAug 2016
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS REFUNDING SERIES 2015
Official StatementsNov 2015
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS SERIES 2011A
Official StatementsMar 2011
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS REFUNDING SERIES 2010
Official StatementsAug 2010
OSEMMA · official statement
B
OS
ENERGY CONSERVATION CAPITAL IMPROVEMENT TRUST FUND BONDS SERIES 2010B (NON-QECB TAXABLE B…
Official StatementsJun 2010
OSEMMA · official statement
B
OS
ENERGY CONSERVATION CAPITAL IMPROVEMENT TRUST FUND BONDS SERIES 2010A (TAXABLE QUALIFIED …
Official StatementsJun 2010
OSEMMA · official statement
B
OS
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS REFUNDING SERIES 2009
Official StatementsDec 2009
OSEMMA · official statement
B
OS
OPEN SPACE CAP IMPT TRUST FUND BDS 2008
Official StatementsSep 2008
OSEMMA · official statement
B
OS
CAP IMPT TR FD BDS 2005 A
Official StatementsMar 2005
OSEMMA · official statement
B
OS
Official Statements
Official StatementsNov 2002
OSEMMA · official statement
B
OS
Official Statements
Official StatementsApr 2001
OSEMMA · official statement
B
OS
Official Statements
Official StatementsMar 2001
OSEMMA · official statement
B
OS
Official Statements
Official StatementsFeb 1998
OSEMMA · official statement
Annual / Operating Data
2024 Annual Operating Data
2023 Annual Operating Data
2022 Annual Operating Data
2021 Annual Operating Data
2020 Annual Operating Data
2019 Annual Operating Data
Financial Reports
2024 ACFR - Boulder County, CO
2023 ACFR - Boulder County, CO
2022 ACFR - Boulder County, CO
2021 ACFR - Boulder County, CO
2021 Notice of Filing Unaudited Financial Statements - Boulder County, CO
2021 Unaudited Financial Statements - Boulder County, CO
2020 ACFR - Boulder County, CO
2020 Unaudited Financial Statements - Boulder County, CO
2020 Notice of Filing Unaudited Financial Statements
2019 Comprehensive Annual Financial Report - Boulder County, CO
2019 Unaudited Financial Statements - Boulder County, CO
2019 Notice of Filing Unaudited Financial Statements
Official Statements
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS, SERIES 2020A
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS: $27,585,000 REFUNDING SERIES 2016B
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS, REFUNDING SERIES 2016A
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS: $27,585,000 REFUNDING SERIES 2016B
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS, REFUNDING SERIES 2016A
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS REFUNDING SERIES 2015
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS SERIES 2011A
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS REFUNDING SERIES 2010
ENERGY CONSERVATION CAPITAL IMPROVEMENT TRUST FUND BONDS SERIES 2010B (NON-QECB TAXABLE BONDS)
ENERGY CONSERVATION CAPITAL IMPROVEMENT TRUST FUND BONDS SERIES 2010A (TAXABLE QUALIFIED ENERGY CONSERVATION BONDS - DI…
OPEN SPACE CAPITAL IMPROVEMENT TRUST FUND BONDS REFUNDING SERIES 2009
OPEN SPACE CAP IMPT TRUST FUND BDS 2008
CAP IMPT TR FD BDS 2005 A
Official Statements
Official Statements
Official Statements
Official Statements
No documents match your search.
Disclosure record
2 years of annual filings on EMMA33 continuing-disclosure filings compiled
Latest filing more than one year ago · Aug 2025
Public documents
36Public contact
ListedAnnual financial filings posted to the MSRB’s EMMA, newest first — a reporting-cadence signal. Click a year to open the filing.
33 continuing-disclosure filings compiled
Latest filing more than one year ago · latest posting 2025-08-06
✓ 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 12, 2026What 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
2 of 3
2 of 3 reporting years (2023–2025) have an annual financial filing compiled from the MSRB’s EMMA. The denominator is MuniPro’s 3-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
One to two years old
The newest continuing-disclosure filing MuniPro has compiled for this issuer was posted 402 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 →