Weld County, CO follows the Colorado statutory schedule. This page shows that schedule, the county's own website, and the late penalty — the county can still set its own dates, so confirm before you pay.
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…until first half — March 1, 2027
Instalment
Due date
Notes
First half
March 1, 2027
First half is due by the last day of February; paying the full amount by April 30 avoids interest.
Annual (single payment)
May 1, 2027
Optional single payment of the full year's tax; no delinquent interest if paid by this date.
Second half
June 16, 2027
Second half is due by June 15; the unpaid balance becomes delinquent June 16.
Schedule: leg.colorado.gov · Colorado statute · not yet county-verified
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Statewide schedule — read this before you rely on it
All 64 counties follow the same statutory schedule, adjusting only when a date falls on a weekend or holiday. Most counties in this state follow these dates.
An unpaid first half accrues 1% monthly interest from March 1, and any balance unpaid after June 15 becomes delinquent on June 16 and can be sold as a tax lien.
County treasurers mail tax statements as soon as practicable after January 1.
Weld County at a glance
Population: 359,442 (Census estimate, 2023) — the 8th largest of 64 Colorado counties and county equivalents.
Typical tax bill: $1,995 a year (median for owner-occupied homes, ACS 2022 5-year estimate) — the Colorado median is $2,278.
Land area: 3,985 sq mi, about 90.2 people per sq mi.
County website:www.co.weld.co.us — start here for the treasurer or tax collector page.
By post: mail to the county treasurer; the postmark usually counts, not the arrival date.
In person: the treasurer's office, with your bill or parcel number.
Escrow: if your mortgage escrows taxes, the servicer pays — you still owe any shortfall.
Is this county verified?
Not yet. Weld County is on the queue: we publish a county's own published dates once they have been checked against the county website. Ask for it and it moves up. Until then, the Colorado statutory schedule above is the reliable starting point.
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StacyApproved is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.