Aurora Property Taxes: Lookup, Mill Levies and Metro Districts

Aurora property tax: start with the county and the tax area

An Aurora property tax bill depends on three things the list price can't tell you: which county the home sits in (Arapahoe, Adams or Douglas), which school district taxes it, and whether a metro district sits on top. Two Aurora homes with the same value can owe very different amounts. This guide shows how to run an Aurora, Colorado property tax search on the right county site, what the 2025 mill levies look like across Aurora, and what to check before you write an offer. Call or text 303-955-4220. A live person answers.

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Which county is your Aurora home in?

Aurora covers more than 165 square miles across three counties, and each county runs its own Assessor and Treasurer. Roughly, the part of Aurora south of East Colfax Avenue is in Arapahoe County, most of the city north of it is in Adams County, and a small pocket on the far southern edge is in Douglas County. The line is not exact, so check the parcel record.

• Arapahoe County: the Assessor's property search covers value, characteristics and sales. The Location Information Search shows the jurisdiction, tax information and districts for an address. The Treasurer's Tax Search shows the bill.
• Adams County: the Adams County Property Portal for north Aurora.
• Douglas County: the Assessor's Advanced Search for the southern pocket.

One surprise worth knowing: some homes with an Aurora mailing address are not inside the City of Aurora at all. Arapahoe County's 2025 levy file shows the Copperleaf tax areas with no City of Aurora levy. The tax record, not the mailing address, decides who taxes the home.

Aurora mill levies for tax year 2025

These are Arapahoe County's certified levies for tax year 2025, the bills Aurora owners pay in 2026:

• City of Aurora: 7.087 mills (8.605 general, less a 1.518 mill temporary tax credit)
• Arapahoe County: 15.959 mills, plus 1.000 mill for developmental disabilities
• Cherry Creek School District 5: 54.108 mills
• Aurora Public Schools (Adams-Arapahoe 28J): 73.186 mills
• Mile High Flood District: 1.000 mill (0.900 plus 0.100 for the South Platte)
• Arapahoe Library District: 5.719 mills, only in some Aurora tax areas

The school district is the biggest swing. On the same value, an Aurora Public Schools tax area carries 19.078 more mills than a Cherry Creek tax area with no metro district. Homes north of Colfax in Adams County use Adams County's levies, which the county publishes on request from its Assessor.

Aurora metro districts: the part of the bill buyers miss

Most newer Aurora neighborhoods were built with a metropolitan district, a separate local government that borrowed to pay for streets, water lines and parks and repays that debt with its own property tax. Since 2004 Aurora has required new districts to follow its Model Service Plan, which caps each district's debt levy and how many years it can run. The district's mills are added to everything above. A few from Arapahoe County's 2025 file:

• Tallyn's Reach Metro District 2: 5.984 mills (tax area total 85.588)
• Horizon Metro District 5: 16.514 mills (total 120.465)
• Saddle Rock Metro District: 32.736 mills (total 124.199)
• Conservatory Metro District: 35.951 mills (total 139.902)
• Southlands Metro District 1: 42.000 mills (total 121.154)
• Southshore Metro District: 64.068 mills (total 143.222)
• Eastern Hills Metro Districts 2 and 5: 70.000 mills (total 168.232)
• Murphy Creek Metro District 4: 74.562 mills (total 172.794)

Some parcels sit inside two or three overlapping districts, and totals climb fast. Aurora's metro district page has an address map, and every district's budget and audit are filed with the state. For how these districts work across the metro, read our special district and metro district tax guide and how HOAs, metro districts and taxes affect buyers.

Notices, protests and due dates

The Arapahoe County Assessor mails notices of value by May 1. For 2026 the appeal window ran from May 1 to June 8; you can appeal in person, online or by mail, and only the value or the classification can be appealed. Adams and Douglas counties use the same May 1 to June 8 window. Owners can protest every year, but in an even-numbered year the value normally carries over from the odd-year reappraisal. The next reappraisal is 2027.

Bills go out after January 1. Starting in 2026, Arapahoe mails postcards and the full statement is online. Pay in full by April 30, or in halves: the first by the last day of February and the second by mid-June. Late payments carry interest of 1% a month. Arapahoe takes e-check online with no fee, cards with a fee, and payments by phone, mail, drop box or in person.

The grid above is live from the MLS. Pick two or three homes, then look up each address on the county site to compare their tax areas side by side. Compare neighborhoods on our Aurora area guide, see new construction in Aurora (where metro districts are most common), or check affordable homes in Aurora.

Get the numbers before you commit

The Kenna Group at Keller Williams DTC pulls the county record, tax area and metro district for any Aurora home you're serious about, so the monthly payment you plan for is the real one. Call or text 303-955-4220. A live person answers.

The Kenna Group is a real estate group with Keller Williams Realty DTC, LLC (Keller Williams DTC), formerly known as Kenna Real Estate Group, serving Denver metro home buyers and sellers.