How Assessor Offices Are Organised Across Arizona

Arizona has no single statewide assessor. Each of the state's 15 counties elects its own county assessor, and that office identifies, lists and values every taxable parcel inside the county line. If you own a home in Prescott, a ranch near St. Johns or a rental in Yuma, the office that sets the value on your property is the county assessor. It is not city hall, and it is not the state.

The Arizona Department of Revenue sits above the counties in a supervisory role. It publishes valuation standards, supports training for county appraisers and reviews how the rules are applied. It does not set your individual value, and it does not collect your bill. Those jobs stay local.

That split confuses many property owners. The assessor decides what a property is worth for tax purposes and applies the correct classification and any exemption. Local taxing bodies, such as school districts, cities and the county board of supervisors, set the tax rates. The county treasurer mails the bills and collects payment. Call the wrong office and you will usually be redirected, so it helps to know who does what before you pick up the phone.

Our directory lists 20 assessor offices spread across all 15 counties. Some are main county offices. Others are branch or field offices that exist because Arizona counties are large and the distances are real. Mohave County, for example, is long and narrow, and a single office in Kingman could not serve both the Colorado River communities and the interior without a long drive.

Metro Phoenix and Tucson Compared With Rural Arizona

Where you live changes how you deal with the assessor. Most of the state's population is packed into two counties, and the rest of Arizona is spread thinly over very large territory.

Maricopa and Pima: large staffs, strong online tools

The Maricopa County Assessor's Office is at 301 West Jefferson Street in Phoenix, phone 602-506-3406. It serves the biggest tax roll in the state, covering Phoenix and its surrounding cities. An office of that size handles a very high volume of parcels, so routine questions are usually best answered through the county's website or by phone before you decide to visit in person.

In southern Arizona, Pima County has two Tucson listings in our database. The Pima County Assessor is at 240 North Stone Avenue, phone 520-724-8630. The Pima County Assessor's Office is at 115 North Church Avenue, phone 520-724-8172. Both are in downtown Tucson, and the two addresses are close enough that a wrong turn costs you a few minutes, not an afternoon. Confirm by phone which address handles your particular request.

Rural counties: fewer staff, more personal service

Outside the two metro areas, assessor offices are smaller and counters are less crowded. A property owner in Safford can walk into the Graham County Assessor's Office at 921 West Thatcher Boulevard, phone 928-428-2828, and often speak with someone who knows the local parcels. The same is true at the Greenlee County Assessor's Office, 253 5th Street in Clifton, phone 928-865-5302, in one of the state's smallest counties by population.

The trade-off is distance. Some owners live an hour or more from the county seat. That is why several rural counties keep more than one location, and why a phone call first is almost always worth it.

Finding the Right Arizona Assessor Office for Your Parcel

Your county is determined by where the property sits, not where you live. An owner who lives in Phoenix but holds land near Parker deals with La Paz County, not Maricopa. The list below shows examples from our database so you can see how locations are spread around the state.

The Mohave County and Cochise County pages on this site show each office in more detail, including the branch locations. Phone numbers and hours can change, so verify them before you drive.

Arizona Valuation Rules That Affect Your Bill

Arizona property tax works differently from many other states, and a few rules are worth knowing before you speak to an assessor.

Arizona keeps two kinds of value on each parcel. Full cash value is meant to reflect market value. Limited property value is the figure that actually drives most tax bills, and it can rise by no more than 5 percent a year for a given parcel. Voters approved that limit in 2012, and it softens the effect of fast-rising home prices in places like the Phoenix area. New construction and changes to a property can still reset the limited value.

Valuation also runs on a lag. Values are set as of January 1 of the year before the tax year in question. A notice of value is mailed to owners early in the year, and the notice is your signal to check the details. Look at the square footage, lot size, number of bathrooms and property class. Simple factual errors are the easiest to correct.

If you disagree with the value, Arizona gives you a limited window to petition the assessor. The deadline is tied to the mailing date of your notice, and it is measured in days, not months. The notice itself explains the deadline and the form to use. Keep your copy and read it as soon as it arrives. Filing late can mean waiting a full year.

Collection is separate. Arizona property taxes are paid to the county treasurer in two installments. The first half is due October 1 and becomes delinquent after November 1. The second half is due March 1 and becomes delinquent after May 1. The assessor's office cannot take payments or waive interest, so send payment questions to the treasurer.

Exemptions and special programs

Arizona offers exemptions for qualifying widows, widowers, and people with disabilities. It also has a Senior Property Valuation Protection Option, which lets eligible homeowners aged 65 and older lock in their limited property value for a period of years. Income and ownership rules apply, and the filing deadline usually falls in the autumn. These programs are handled through the county assessor, so ask that office for current forms and thresholds rather than relying on an old figure.

Large parts of Apache and Navajo counties are tribal trust land, which is generally outside the ordinary county tax roll for private property. If your parcel sits on or near a reservation, ask the Navajo County or Apache County assessor how it is treated before assuming anything about your bill.

Preparing for an Assessor Visit or Call in Arizona

A little preparation shortens every assessor interaction. Most requests are routine, and staff can answer them quickly when you arrive with the right details.

Start with your parcel number. Arizona parcels are identified by an assessor parcel number, and it appears on your valuation notice and tax bill. With it, staff can pull your record in seconds. Without it, they will search by address or owner name, which takes longer and can return similar results.

Bring supporting paperwork for what you are asking. If you are reporting a mistake in your property description, bring a floor plan, a recent appraisal or photos. If you are applying for an exemption, bring proof of age, disability status or ownership as the form requests. If you are challenging a value, bring recent sales of similar homes nearby, because the assessor weighs comparable sales more heavily than opinions.

Choose your timing well. Offices tend to be busiest in the weeks after valuation notices go out, since that is when most questions and appeals begin. Mid-week mornings are often quieter than Mondays or the days just before a deadline. In small county offices, staff may also close for lunch or for training, so a short phone call can prevent a wasted trip.

Finally, keep written records. Note the date you called, the name of the person you spoke with and any reference number you were given. If a dispute continues past the assessor stage, that record can support your case.

Property assessor offices in Arizona operate under state property tax statutes that specify how properties must be valued, how often reappraisals occur, and what exemptions are available to qualifying homeowners. The state department of revenue or taxation typically provides oversight and technical guidance to county assessors to ensure consistent valuation practices statewide.

Assessor locations are available in 19 cities across Arizona. They are spread across 15 counties.

Cities with the highest concentration include Tucson, Florence, Bisbee, where high real estate activity and complex commercial properties create greater demand for assessor services and property valuation resources.

Property owners in Arizona should verify that their primary residence homestead exemption is active and confirm the annual appeal deadline with their local assessor office, as missing the deadline means waiting until the following tax year to contest a valuation.

Assessor by Counties

A
C
G
L
M
N
P
S
Y

Many county assessor offices in Arizona now offer online property search tools where homeowners can view their assessed value, recent sales history, and exemption status without visiting the office. If you have questions about a recent reassessment notice, calling or emailing the assessor's office is often the fastest way to get a response before filing a formal appeal.

Browse Assessor by county across Arizona to find the nearest location.

Assessor Contacts From Tucson to Flagstaff and Yuma

Arizona stretches from the Mexican border to the Utah line, so the nearest assessor office depends heavily on your region. In the south, Pima County has two Tucson offices, Cochise County has locations in Benson and Bisbee, and Santa Cruz County is served from Nogales. In the north, Coconino County is served from Flagstaff and Navajo County from Holbrook. On the western edge, La Paz County is served from Parker and Yuma County from Yuma, while Mohave County runs field offices in Bullhead City and Lake Havasu City.

Many people search by city, but the assessor works by county. If you live in a small town without its own listing, look up the county seat first. Cottonwood and Prescott are both Yavapai County locations, so a Verde Valley owner and a Prescott owner contact the same elected assessor, even though they visit different buildings. The same logic applies in Cochise County, where Benson and Bisbee sit under one county assessor.

Use the questions below as a starting point. For anything that depends on your exact parcel, phone the county office listed on its page and have your parcel number ready.

Your county assessor does. Arizona has 15 elected county assessors, and each one values the taxable property in that county. The Arizona Department of Revenue sets standards and supervises, but it does not value individual homes. Your notice of value comes from the county office, so questions about square footage, classification or exemptions go there. Tax rates are set by local taxing districts, and bills come from the county treasurer, so those questions belong elsewhere. If you are unsure, call the assessor first and ask to be pointed to the right office.

Arizona tracks a limited property value for each parcel, and the state constitution caps annual growth in that figure at 5 percent. Your full cash value may rise faster than that when the market is hot, which is why you may see two different numbers on your notice. The limited value is the one used to calculate most tax bills. New construction, additions or a change in use can reset the limited value, so the cap does not protect every change to a property.

Begin with your notice of value, which explains the petition deadline and the form to use. The deadline runs from the mailing date, so act promptly. File with the assessor, such as the Yavapai County office in Prescott or Cottonwood, or the Navajo County office in Holbrook. Include comparable sales, photos or an appraisal. If the assessor does not resolve the matter, the notice outlines further review through the appropriate board. Keep copies of everything you send.

No. The assessor values property and applies exemptions, while the county treasurer sends bills and takes payments. Arizona bills are payable in two halves. The first half is due October 1 and is delinquent after November 1. The second half is due March 1 and is delinquent after May 1. If you have a question about interest, a lost bill or a payment you already made, contact the treasurer in your county. If you think the value on the bill is wrong, that is an assessor matter.

Ask about the exemption for qualifying widows, widowers and persons with disabilities, and about the Senior Property Valuation Protection Option for homeowners aged 65 and older. Both have eligibility rules covering ownership, residency and income, and the dollar thresholds change over time, so get current figures from your county office. Applications are typically due in the autumn, though you should confirm the date locally. Bring proof of age or disability status and your parcel number when you apply.

In some counties, yes. Mohave County lists field offices in Bullhead City at 1130 Hancock Road and in Lake Havasu City at 2001 College Drive, in addition to the Kingman office on West Beale Street. Cochise County has offices in both Benson and Bisbee. Services at a branch can differ from the main office, so call ahead and ask whether your specific request can be handled there. That saves you a trip, especially in counties where the county seat is a long drive away.