Arizona buyer question
Is the City of Maricopa in Maricopa County?
It's one of the most common mix-ups in Arizona home buying. The names match, but the county doesn't, and that decides where you look up taxes and records.
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The short answer
Quick answer: No. The City of Maricopa is in Pinal County, south of the Valley. It incorporated in 2003. Maricopa County is a different place: the county that includes Phoenix. For a home in the city, the Pinal County Assessor values it and the Pinal County Treasurer bills its property taxes, so use Pinal County records, not Maricopa County's.
Source: City of Maricopa, Populations & Demographics; Pinal County Treasurer, FAQ (retrieved November 5, 2026). Last updated .
City of Maricopa vs. Maricopa County at a glance
| Item | City of Maricopa | Maricopa County |
|---|---|---|
| What it is | A city incorporated October 15, 2003 | The county that includes Phoenix, Mesa, Scottsdale and most of the Valley |
| County it sits in | Pinal County | Itself |
| Who values your home | Pinal County Assessor | Maricopa County Assessor |
| Who bills property taxes | Pinal County Treasurer | Maricopa County Treasurer |
| 2026 FHA one-unit limit | $557,750 (Pinal County) | $557,750 (Maricopa County) |
| Fire service | City of Maricopa Fire & Medical Department | Depends on the city or fire district |
Sources: City of Maricopa; Pinal County Treasurer; Maricopa County Treasurer; HUD 2026 FHA limits as shown on our Pinal County and Maricopa County loan limit pages.
Why the county matters when you buy
Taxes and records
Searching the Maricopa County Assessor for a City of Maricopa address won't find it. Use the Pinal County Assessor for the parcel and value, and the Pinal County Treasurer for the tax bill. Pinal's first-half taxes are due October 1 and delinquent after November 1; second-half taxes are due March 1 and delinquent after May 1. See when property taxes are due.
Fire service is a city department
The city's fire department started as a volunteer fire district formed by the Pinal County Board of Supervisors in 1976. After voters approved a public safety property tax in 2006, the city absorbed the district, which began operating under the city on July 1, 2007. Read that line on the tax bill along with the county, school and any special district lines.
Create your free account to see all homes for sale that fit the monthly payment you're comfortable with, each with its actual property taxes, HOA dues, estimated homeowners insurance, and mortgage insurance when it applies, plus its own estimated closing costs and APR disclosure.
Opens a third-party home search site. Payments shown there are estimates to help you search, not a loan offer or rate quote. Your actual payment depends on price, down payment, credit, taxes, insurance, HOA, and loan program.
City limits vs. a Maricopa mailing address
The city covers about 43 square miles, but its planning area spans about 233 square miles of western Pinal County. Some homes with a Maricopa, AZ mailing address are outside city limits, in unincorporated Pinal County, where services and tax lines can differ. Check the parcel's jurisdiction with the Pinal County Assessor or your title company.
Loan limits happen to match
For 2026, HUD's one-unit FHA limit is $557,750 in both Pinal and Maricopa counties, and the conforming limit is $832,750 in every Arizona county. Lenders still use the county where the home is, so make sure the loan file says Pinal.
Getting there from Maricopa County
The city is linked to I-10 by State Route 347 and has an Amtrak station. It borders the Ak-Chin Indian Community and the Gila River Indian Community. See our Maricopa homes by monthly budget page for Census housing figures.
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Related: Maricopa, AZ · is San Tan Valley a city? · Casa Grande · how property taxes are calculated · more questions.
General information. Boundaries, services and tax rates change; confirm them for the specific parcel with the City of Maricopa, the Pinal County Assessor and Treasurer, and your title company.
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Create your free account to see all homes for sale that fit the monthly payment you're comfortable with, each with its actual property taxes, HOA dues, estimated homeowners insurance, and mortgage insurance when it applies, plus its own estimated closing costs and APR disclosure.
Opens a third-party home search site. Payments shown there are estimates to help you search, not a loan offer or rate quote. Your actual payment depends on price, down payment, credit, taxes, insurance, HOA, and loan program.
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Sources
- City of Maricopa, Populations & Demographics ("Arizona's 88th municipality, incorporated on October 15, 2003") (retrieved November 5, 2026)
- City of Maricopa, General Plan, I. Introduction (planning area of about 233 square miles in western Pinal County) (retrieved November 5, 2026)
- City of Maricopa Fire & Medical Department, Department History (2006 public safety property tax; district absorbed July 1, 2007) (retrieved November 5, 2026)
- Pinal County Treasurer, Frequently Asked Questions (taxing authorities, due dates) (retrieved November 5, 2026)
- Maricopa County Treasurer, Understanding your tax bill (retrieved November 5, 2026)
Frequently asked questions
Is Maricopa, AZ in Maricopa County?
No. The City of Maricopa is in Pinal County. Maricopa County is the neighboring county that includes Phoenix.
Where do I look up property taxes for a home in the City of Maricopa?
The Pinal County Treasurer bills and collects them, and the Pinal County Assessor values the parcel.
When did Maricopa become a city?
The City of Maricopa incorporated on October 15, 2003, as Arizona's 88th municipality.
Who provides fire service in the City of Maricopa?
The City of Maricopa Fire & Medical Department, which took over the former fire district on July 1, 2007, after voters approved a public safety property tax in 2006.
Is every Maricopa, AZ address inside city limits?
No. The city's planning area is much larger than its limits, so some addresses are in unincorporated Pinal County. Check the parcel's jurisdiction.