Flood Zones: Green Valley vs Sahuarita
How do flood zones rules compare between Green Valley, AZ and Sahuarita, AZ?
Green Valley and Sahuarita have similar restriction levels.
Green Valley, AZ
Pima County
Pima County Regional Flood Control District administers the Floodplain Management Ordinance (Title 16, Ordinance 2010-FC5). The District maps both FEMA FIRMs and local Special Study Floodplains covering more than half of known county flood hazards. FEMA updated Pima County flood maps January 2026 (appeal through April 29, 2026). Building in/near washes requires flood control approval.
View full Green Valley rules →Sahuarita, AZ
Pima County
Sahuarita has significant flood risk areas along the Santa Cruz River corridor and tributary washes. Properties in FEMA-designated flood zones must comply with floodplain management regulations, and flood insurance may be required for mortgaged properties.
View full Sahuarita rules →Key Facts Comparison
| Fact | Green Valley | Sahuarita |
|---|---|---|
| Ordinance | Title 16 (Ord. 2010-FC5) | - |
| Flood District | Pima County RFCD: 520-724-4600 | - |
| FEMA Maps | Updated Jan 2026; appeal by Apr 29 2026 | - |
| Special Studies | District maps fill FEMA gaps | - |
| Permit Trigger | 100+ cfs peak discharge floodplain | - |
| Primary Hazard | Desert wash/arroyo flash flooding | - |
| Major Flood Source | - | Santa Cruz River and tributary washes |
| FEMA Zones | - | Zone A and Zone AE mapped areas |
| Elevation Requirement | - | Above base flood elevation plus freeboard |
| Flood Control | - | Pima County RFCD manages infrastructure |
| Insurance | - | Required for mortgages in flood zones |
Highlighted rows indicate differences between cities.
Green Valley FAQ
Is my property in a flood zone in Pima County?
Pima County Regional Flood Control District administers the Floodplain Management Ordinance (Title 16, Ordinance 2010-FC5). The District maps both FEMA FIRMs and local Special Study Floodplains covering more than half of known county flood hazards. FEMA updated Pima County flood maps January...
Do I need flood insurance in Pima County?
Ordinance: Title 16 (Ord. 2010-FC5). Flood District: Pima County RFCD: 520-724-4600. FEMA Maps: Updated Jan 2026; appeal by Apr 29 2026. Special Studies: District maps fill FEMA gaps.
Sahuarita FAQ
Is my Sahuarita property in a flood zone?
Check the FEMA Flood Map Service Center online or contact Sahuarita Community Development at (520) 822-8800. Properties near the Santa Cruz River, wash corridors, and low-lying areas are most likely to be in designated flood zones.
Do I need flood insurance in Sahuarita?
If your property is in a FEMA-designated Special Flood Hazard Area and you have a federally backed mortgage, flood insurance is mandatory. Even outside flood zones, it is recommended given the intense monsoon flash flood risk in southern Arizona.
Compare other topics
See how Green Valley and Sahuarita compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool