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Mills council backs resolution seeking unique ZIP code to fix mail, billing and tax issues
Summary
The Mills City Council approved Resolution 2025-20 expressing support for a unique ZIP code for Mills after residents and a city staff member described problems with mail delivery, medical billing and property tax attribution tied to the shared 82644 ZIP code.
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The Mills City Council voted to approve Resolution 2025-20, expressing support for the designation of a unique ZIP code for the city of Mills, after residents described longstanding problems tied to the area's current 82644 ZIP code.
City staff and residents told the council the shared ZIP code causes delayed medical billing, confusion for emergency response and misattributed franchise and property tax revenue. A city staff member said, "So Mills doesn't technically have its own unique ZIP code, and it's kind of a mess."
The resolution was moved and seconded during the meeting and passed on voice vote. Council members indicated their approval with collective "Aye" responses and the mayor declared the motion passed. The resolution text recorded in the meeting is "Resolution number 2025-20, zip code, a resolution expressing support for the designation of a unique zip code for the city of Mills."
Residents at the lectern described practical problems for households and businesses. Scott Clamp, a resident who spoke during the public comment period, asked, "So what's the scoop on this new ZIP code?" and later recounted that many residents use post office boxes rather than home delivery. Other commenters described business records, Social Security and long-standing landline phone numbers tied to the 82644 designation and said that shifting addressing could create complications for families and legacy businesses.
Speakers suggested a range of technical fixes, including seeking a dedicated ZIP code or adding a distinct +4 suffix to clarify delivery routes. A city staff member noted the ZIP code is currently associated with the Casper post office hub, and that sorting and delivery are controlled through that hub, which contributes to the confusion.
Why it matters: residents said the ZIP-code issue affects health billing, emergency response jurisdictional clarity, franchise fees and where property tax revenues are recorded. Council approval of the resolution formally registers Mills' support for pursuing a unique ZIP code, which city officials indicated they will take to higher authorities and to congressional assistance as necessary.
The resolution does not itself change postal addressing or delivery; it is a formal expression of support to be used in discussions with the U.S. Postal Service and other agencies. The meeting record did not specify a timeline, whether the U.S. Postal Service has been approached previously about the change, or what next steps the city will take beyond passing the resolution.

