About Maricopa County, Arizona

Maricopa County is located in south-central Arizona. The county seat is Phoenix (official site: http://www.maricopa.gov/).

  • Population: 4,087,191
  • Households: 1,668,171
  • Median household income: $53,596
  • Median home value: $176,500
  • Below poverty line: 16.7%
  • Land area: 9,200.1 sq mi
  • Population density: 414.9 people / sq mi
  • Public libraries indexed: 64
  • NCES schools indexed: 1,138
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Maricopa County Home Page
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Official Maricopa County, Arizona government website. The 4th-largest U.S. county by population (~5.18 million residents) and 5th-largest by land area in Arizona (9,202 square miles), encompassing 24 incorporated cities and towns. County seat is Phoenix (~1.7 million residents). Governed by a five-member Board of Supervisors; 2026 Chair is Kate Brophy McGee (unanimously elected January 5, 2026 — the first female chair in nearly a quarter century). ADA Compliance Program: adahelp@maricopa.gov, (602) 506-0583.
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Contracts
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Maricopa County Office of Procurement Services awarded-contracts database. Search by vendor name, contract serial number, commodity code, or department to view active and historical contracts the county has awarded for goods and services. Procurement is governed by the Maricopa County Procurement Code and applicable Arizona Revised Statutes Title 41 (state procurement) standards. The Office of Procurement Services also publishes solicitations, RFPs, bid tabulations, and lists of small-business and minority-owned vendor opportunities.
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Health Inspections — Food & Restaurant
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Maricopa County Environmental Services Department restaurant-inspection portal under the Cutting Edge food-safety rating system. Search by business name, address, city, ZIP, or permit type (restaurant, mobile food, annual event, bottled water plant) to view the most recent inspection date, score, violations cited, and follow-up actions. All inspection reports are public records and available for the previous 3 years. Weekly reports show top violations countywide. Phoenix metro has roughly 17,000 permitted food facilities under the program.
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Adoptable Pets
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Maricopa County Animal Care and Control (MCACC) adoptable-pets database. MCACC operates two shelters (West Valley and East Valley) and is one of the largest open-admission animal shelters in the United States, taking in roughly 30,000 dogs and cats annually. Search by species, breed, age, size, color, gender, and location. The agency also handles licensing, lost-pet returns, and animal-cruelty complaints; rabies vaccinations are required for all dogs over 3 months old in Maricopa County under Arizona Revised Statutes §11-1010.
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Court Records — Superior Civil, Criminal, Family, Probate
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Maricopa County Superior Court docket portal under Presiding Judge Pamela Gates and Clerk of the Court Joseph W. Malka. Search Civil, Criminal, Family, and Probate cases by case number, party name, or filing date; results include case history, calendars, and judicial Minute Entries. Information may be updated up to 24 hours after filing for auditing purposes. System unavailable Tuesday through Saturday from 3:00 to 4:00 AM for maintenance. Free public access without registration.
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Court Records — Superior, Municipal, Juvenile, Justice
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Arizona Judicial Branch statewide Public Access to Court Information portal, covering Maricopa County Superior Court, Juvenile Court, Municipal Court records, plus selected limited-jurisdiction Justice Courts. Run by the Arizona Supreme Court Administrative Office of the Courts under Chief Justice's order; allows case-number or party-name searches across the entire state where participating courts have opted in. Companion to the county Superior Court's own docket portal for the deepest record access.
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Court Records — Justice
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Maricopa County Justice Courts case-history search across all justice precincts (approximately 26 precinct Justice Courts countywide). Handles civil cases up to $10,000, small claims up to $3,500, evictions, traffic, misdemeanor criminal, and Orders of Protection under Arizona Rule of Civil Procedure for Limited Jurisdiction Courts. Search by last name, first name, date of birth, business name, or case number. Records subject to the Arizona Supreme Court's Records Retention Schedule for Limited Jurisdiction Courts.
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Probate Records 1870-1930
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FamilySearch digital collection of over 600,000 probate-record images filed in the Maricopa County Superior Court between 1870 and 1930, the first 60 years of Arizona county probate practice (Arizona did not become a state until 1912). Search by decedent name, year of probate, executor, or case number to view scans of wills, inventories, letters of administration, and final accountings. Free with a FamilySearch account. Source images digitized from the original Maricopa County Probate Court ledger books.
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Inmates — Bookings
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Maricopa County Sheriff's Office mugshot-lookup tool, operated under Sheriff Jerry Sheridan (elected November 2024 after four decades of MCSO service, formerly Chief Deputy under Joe Arpaio). Search recent bookings by name, booking number, or date range; results return the booking photo, charges, booking date, and current custody status. Companion to the inmate-information page for active custody and the warrant-lookup tool. MCSO also publishes a public crime map through RAIDS Online (raidsonline.com) at no cost to taxpayers.
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Warrants
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Maricopa County Sheriff's Office warrant search under Sheriff Jerry Sheridan. Search active arrest warrants by last name, first name, or date of birth to verify whether MCSO has an outstanding warrant on file. Records cover MCSO warrants only — does not include federal warrants, warrants from other Arizona counties, or warrants from incorporated city police departments. To clear an outstanding warrant, contact MCSO directly or surrender at the Fourth Avenue Jail in downtown Phoenix.
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Inmates
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Maricopa County Sheriff's Office Custody Bureau inmate-information lookup under Sheriff Jerry Sheridan. MCSO operates one of the largest county jail systems in the United States, housing pre-trial detainees and sentenced inmates across the Fourth Avenue Jail, Lower Buckeye Jail, Towers Jail, Estrella Jail, and Durango Jail in central Phoenix. Search by inmate name or booking number to find current custody location, charges, bond amount, and projected release. Companion to the bookings (mugshot) and warrant search tools.
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Permits & Inspections
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Maricopa County Planning and Development Department permit and inspection portal for unincorporated areas of the county (incorporated cities issue their own permits). Search by parcel address or permit number to view building, electrical, mechanical, plumbing, septic, and grading permit status. Request inspections, schedule appointments, and pay permit fees online. The department also publishes the Maricopa County Zoning Ordinance and floodplain regulations. Headquartered at 501 N 44th St, Phoenix, AZ 85008.
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Air Quality Permits
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Maricopa County Air Quality Department permit lookup, covering air-emission permits required under the federal Clean Air Act, EPA Title V, and Arizona Administrative Code Title 18 Chapter 2. The Phoenix metro is a designated nonattainment area for ozone and PM-10, so industrial, commercial, and large agricultural sources must hold a current permit. Search active applications, publicly noticed draft permits, and final permits issued. Also covers asbestos NESHAP notifications and stationary-source compliance reports.
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Recorded Documents
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Maricopa County Recorder document database under elected Recorder Justin Heap (since January 2025). Search recorded documents including deeds, mortgages, deeds of trust, releases, liens, judgments, affidavits, lis pendens, mineral deeds, and military discharges (DD-214) by grantor/grantee name, document number, recording date, or document type. The Recorder also runs Maricopa Title Alert, a free notification service that alerts property owners when a document is recorded under their name to help prevent deed fraud.
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Property — Assessor
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Maricopa County Assessor property records under elected Assessor Eddie Cook. The Assessor annually notices and administers over 1.8 million real and personal property parcels and accounts with a full cash value of more than $1 trillion. Search by parcel number, address, or owner for real property, business personal property (BPP), and mobile homes. Recent Arizona legislation includes HB 2173 modernizing Assessor-property owner electronic communications and SB 1479 strengthening deed-fraud protections for Arizona homeowners.
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Property — Treasurer
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Maricopa County Treasurer property tax search and payment portal under elected Treasurer John M. Allen (term ends January 1, 2029). The Treasurer collects all real and personal property taxes for more than 1,800 tax districts — state, county, incorporated cities, towns, schools, community colleges, and special districts — then distributes the funds. Arizona property taxes are paid in two installments: 1st half due October 1 (delinquent November 1), 2nd half due March 1 (delinquent May 1). Pay by parcel number online or enroll in eNoticesOnline paperless billing.
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Property — GIS
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Maricopa County Assessor interactive GIS (Geographic Information System) parcel viewer under Assessor Eddie Cook. Click any of the 1.8 million parcels on the map or search by APN, address, or owner name to view parcel boundaries, zoning, current assessed values, ownership history, and exemption status. The GIS map layers over Maricopa's 9,202 square miles — the 5th-largest U.S. county by total area, larger than four entire states. Useful for parcel-level due diligence on real estate and adjoining-owner research.
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Polling Places
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Maricopa County Recorder polling-place lookup under Recorder Justin Heap. Enter your registered voter street address to find your assigned Election Day polling place, voting precinct, congressional district, legislative district, and Board of Supervisors district. Maricopa uses a vote-anywhere model — registered voters may cast a ballot at any countywide voting center during early voting and on Election Day. Hours, accessibility information, and same-day ballot tracking are also available.
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Campaign Finance
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Maricopa County Recorder campaign-finance database under Recorder Justin Heap. Search filed campaign finance reports for Maricopa County candidates and committees by candidate name, committee name, election cycle, or office sought. Reports detail contributions received, expenditures made, in-kind donations, and current balances under Arizona Revised Statutes Title 16, Chapter 6 (Campaign Contributions and Expenses). The Arizona Secretary of State maintains a parallel statewide candidate database for state-level races.
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Voters
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Maricopa County voter registration portal. Arizona residents must register at least 29 days before any election to be eligible to vote. Eligibility per A.R.S. §16-103 requires US citizenship, age 18 by the next general election, 29 days of Arizona residence, no felony or treason conviction (unless civil rights restored), and not adjudicated incapacitated under A.R.S. §14-5101. Check status, register, update, or download a Digital Voter Registration Card. Voter registration assistance: 602-506-1511.
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Property — Tax Sales
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Maricopa County Treasurer's annual tax-lien Certificate of Purchase (CP) sale, hosted on BidMaricopa.com under Treasurer John M. Allen. Arizona Revised Statutes Title 42 Chapter 18 governs the February statutory tax-lien sale, where investors bid on delinquent property-tax liens by accepting a lower interest rate (down from the statutory 16% maximum). View the auction schedule, the list of parcels with unpaid taxes, the bidder registration packet, the deposit requirements, and post-sale reports. Bid in 1% interest-rate decrements.