Which Hillsborough map should you open? Use the evacuation-zone lookup for hurricane evacuation planning and current orders. Use the flood-zone record for property-risk, flood-insurance, and building questions. Save both results with their tool names and dates; one is not evidence of the other.
Hillsborough County describes evacuation zones as storm-surge planning areas that officials may order evacuated. They use the letters A through E, and some locations are outside an evacuation zone. Flood zones are federal risk designations used for insurance and building requirements, and every property has one (County zone comparison).
That difference can produce results that look surprising but are not contradictory. The County notes that a home can be outside an evacuation zone yet have higher flood risk near a pond or stream. A home can also have a lower-risk flood designation while sitting in an earlier evacuation zone because the two systems model different conditions.
Two lookups, two decisions
| Record field | Evacuation zone | Flood zone |
|---|---|---|
| Main question | Could officials order this area to evacuate for a hurricane? | What mapped flood-hazard designation applies to this property? |
| Label | Hillsborough Zone A–E, or outside a zone | FEMA flood-zone designation shown in the property record or FIRM |
| Use it for | Preparedness, live orders, evacuation routes, and alerts | Property research and questions for insurance, lending, and building officials |
| Do not use it for | Insurance or permit conclusions | A storm order, route, shelter decision, or prediction that water will not reach the site |
| Live recheck | Before hurricane season and whenever officials issue storm instructions | Before a property, insurance, refinance, or permit decision |
| Save | Address, tool, result, lookup time, current order or alert, and decision made | Address or parcel, tool, designation, effective record, lookup date, and office confirmation |
The County’s current evacuation page provides the Hurricane Evacuation Assessment Tool, or HEAT, and the A–E color legend. It also displays 2025-versus-2026 comparisons for Thonotosassa, Apollo Beach, and Town ’n’ Country (current evacuation lookup). That is a concrete reason not to rely on a screenshot from a prior season.
Save two labeled results, not a bare “Zone A”
For evacuation planning, retain the address entered, HEAT result and lookup time. Keep the current government order or alert separate from the map result: a zone describes a planning area, not whether officials have ordered it evacuated today.
For property research, retain the address or parcel, flood designation, tool name, panel/effective date when supplied and the office that confirms its use. Hillsborough’s parcel viewer can generate flood-zone reports, but its own disclaimer warns that the geodata is general information without an accuracy or timeliness guarantee. A saved report is a research lead, not a permit determination.
For a Tampa property, the City’s flood page points to official FEMA panels and says local flooding information may cover areas absent from those maps. Keep a drainage observation separate from the mapped designation. If an address, parcel boundary or panel disagrees, ask the responsible floodplain office rather than choosing the more favorable result.
Reopen the evacuation tool and official alerts when a storm threatens; obtain the relevant current flood record before an insurance or construction decision. Neither an old screenshot nor an absence of past flooding establishes present safety.
Source and methodology
Local Service Ledger compared four government records on September 21, 2026, preserving the two-system comparison and condensing repeated instructions into two distinct saved records. The review covered operative page text, not the comparison-map images or a parcel search. We did not search a private address, interpret a FIRM for a parcel, calculate elevation or risk, issue an evacuation recommendation, or verify a shelter.