Coconino is the largest county in Arizona by land area — more than 18,600 square miles, roughly twice the size of Maricopa. The private rural land a seller is likely to own sits in pockets between national forest, tribal and state land: the subdivided high country around Williams and Parks, the land north and east of Flagstaff, and the high-desert lots along the U.S. 180 and U.S. 89 corridors.
Coconino County lies outside every Active Management Area, so groundwater on private land here is not governed by AMA rules. That does not make water simple. Ask any buyer of a plateau parcel what they want to know first and the answer is the same three things: is there a registered well on it or near it, how is it reached in winter, and what will the county allow on it?
The county's assessor, recorder, treasurer and planning offices are linked below. If you inherited land up here and have never seen it, those records — plus a check of the road that reaches it — are the place to start.
What the public record says about Coconino County
- County seat and size. Coconino County's seat is Flagstaff. It counted 145,101 residents in the 2020 Census across 18,616.36 square miles of land. Source
- Groundwater designation. No Active Management Area or Irrigation Non-Expansion Area appears in Coconino County on ADWR's map. Source
Water and wells
No Active Management Area or Irrigation Non-Expansion Area appears in Coconino County on ADWR's map. Whether a particular parcel is inside a boundary is a map question, not a county question — the parcel research tool checks ADWR's boundary layer for the exact parcel, and the well lookup guide shows how to find any registered well on it.
County offices for land research
These are the offices that hold the records a buyer, title company or attorney will ask about. Links marked unchecked link point to official county domains we have not yet opened ourselves.
| Assessor | www.coconino.az.gov unchecked link |
|---|---|
| Parcel search | apps.coconino.az.gov unchecked link |
| GIS / parcel maps | www.coconino.az.gov unchecked link |
| Recorder (deeds, easements) | assessor.coconino.az.gov unchecked link |
| Treasurer (property tax) | www.coconino.az.gov unchecked link |
| Planning & zoning | www.coconino.az.gov unchecked link |
Look up a parcel in Coconino County
Enter an address or assessor parcel number. We pull the parcel record, FEMA flood zone, ADWR water designation and elevation from public sources and label where each one came from.
Sources
Checked 2026-10-02. Links go to the agency or publication named.
General information, not legal, tax or survey advice. First 48 Offers LLC is a real estate investment company that buys land. It is not a law firm, brokerage, surveyor or title company. Arizona statutes, county procedures and agency boundaries change, and every parcel turns on its own facts. Verify anything important with the county, the agency named, or an Arizona attorney before relying on it.