A parcel's street address is its situs address (situs: n. the place where something exists or originates). Some parcels, particularly commercial parcels, may have more than one situs address.
With one exception, Pima County Development Services is the addressing authority for all Pima County situs addresses. The exception is the Town of Marana that manages situs addresses within the Marana city limits. The Pima County Assessor's Office keeps track of the parcel owner's mailing address which may differ from the situs address if the owner gets his mail (property tax bills!) at another address. Also, the United States Postal Service (USPS), 911, fire departments, and others keep track of addresses for their own purposes, but they are not official addressing authorities.
Each situs address has two types of cities associated with the address. A situs address's "Jurisdiction" is the incorporated city that the parcel is in (MARANA, ORO VALLEY, SAHUARITA, SOUTH TUCSON, TUCSON) or unincorporated PIMA COUNTY. A situs address's "Postal City" is the post office or city designation used by the United States Postal Service (USPS) for mail purposes.
The situs address's jurisdiction may be different than the city or post office name used for mail to that street address. For instance, the post office doesn't use PIMA COUNTY in mail addresses, yet PIMA COUNTY is the situs address "Jurisdiction" for parcels in unincorporated Pima County. A good example of this is the Green Valley area which is unincorporated. Situs addresses for Green Valley area all have a situs address "Jurisdiction" of PIMA COUNTY, yet most of the mail addresses in the area use "GREEN VALLEY".
Also, some parcel's jurisdictions may not match their mail city or post office. For instance, many parcels in incorporated MARANA have TUCSON mailing addresses. While the post office delivers mail to most situs addresses, they don't deliver mail to all of them. Many situs addresses are either unknown to the USPS or classified as "Non-deliverable" addresses. In short, a situs address cannot be used for mailing in all cases.
It's important to note that a situs address ZIP code just means that the address is in the given ZIP code. It does not imply that the situs address can accept mail. While the vast majority of situs addresses accept mail, a great many can't. Those that can't accept mail include locations where the occupant uses a post office box instead of a street address, addresses where nobody lives or works, and addresses that simply don't accept mail, such as some addresses where there is more than one address for a parcel. Further, some addresses may require additional information for mailing such as an apartment number or suite that's not included in the situs addresses.
There are different standards for street name suffixes, also known as street types.
When searching for addresses on this site, it's best to use the two-character suffix abbreviation or simply omit the suffix.
With the exception of Marana as noted above, Pima County Development Services is the addressing authority for Pima County. All Situs addresses reported on this web site originate in either Pima County Development Services or the Town of Marana:
Address points from adcounty do not represent precise locations of buildings and represent general locations within parcels. Addresses from the Permits System are centered about the parcel centroid. (If there are too may Permits addresses for a small parcel, some points may fall outside the parcel boundary.) Adparcel addresses can be seen by turning on the "Parcel Addresses" layer on the Main MapGuide map. The source of each address may be seen by turning on the "Parcel Address Sources" layer which shows color code address points indicating the source: ADCOUNTY, PERMITS, or BOTH.
In addition, there are other resources for address research.
The situs address "Postal City" names and ZIP codes you see on this web site are derived from our ZIP code GIS layer using GIS overlay analysis They do not come from Pima County Development Services or from United States Postal Service records.
The Assessor's Office uses situs addresses to assist with identifying and locating parcels. The Assessor's situs addresses are the same as those we report from Development Services GIS.