Home/Orange County, FL
Florida -- population 1,428,790

Orange County, FL Property Research

Real data from four public sources, not an internal estimate: the EPA's radon zone classification, Census housing-age records, FEMA's natural hazard risk index, and NOAA's recorded storm history for this county. Every figure below links to where it actually comes from.

Hazard Summary

Orange County, FL hazard summary: FEMA National Risk Index rated Relatively High; EPA radon zone 3 of 3; most frequently recorded hazard is thunderstorm wind (63 events, 2015-2024).

Radon Risk

Zone 3 -- low potential. EPA predicts an average indoor radon screening level below 2 pCi/L for this county.

This is a county-wide prediction from geology and soil data, not a measurement of any specific home -- EPA recommends testing every home regardless of zone. See our guide on negotiating radon mitigation after inspection.

Source: EPA Map of Radon Zones

Housing Age

Orange County has 576,450 housing units. About 16% were built in 1969 or earlier -- old enough that knob-and-tube wiring, lead-based paint, and galvanized supply lines are all realistic possibilities worth checking for, not just a general inspection line item.

2020 or later
10,439
2010-2019
88,391
2000-2009
120,579
1990-1999
98,954
1980-1989
101,952
1970-1979
64,080
1960-1969
37,772
1950-1959
37,230
1940-1949
8,682
1939 or earlier
8,371

Does knob-and-tube wiring have to be replaced before closing?

Source: U.S. Census Bureau, ACS 5-Year Estimates, Table B25034

Natural Hazard Risk

FEMA rates Orange County's overall natural hazard risk as Relatively High, relative to the rest of the country.

Strong WindVery High
LightningVery High
Cold WaveVery High
TornadoVery High
Inland FloodingRelatively High
Source: FEMA National Risk Index

Recorded Storm History (2015-2024)

NOAA recorded 148 storm events in Orange County between 2015 and 2024. This is actual event history, not a risk model -- the counts below are individually logged storms, not a prediction.

Thunderstorm Wind
63
Hail
47
Lightning
8
Tornado
7
Flood
7
Tropical Storm
6
Funnel Cloud
6
Flash Flood
4
Source: NOAA National Centers for Environmental Information, Storm Events Database

Guides Relevant to This County's Housing Stock

How to Spot Polybutylene Pipes Before Buying a HouseCan You Get Home Insurance with Polybutylene Plumbing?Does a Standard Home Inspection Check for Asbestos?What Is a Federal Pacific Stab-Lok Panel and Why Inspectors Flag It?Do Federal Pacific (FPE) Panels Affect Insurance Like Zinsco Panels?Will a Zinsco Panel Fail a 4-Point Inspection?

Get Your Free Property Report

BeforeRegret pulls live seismic hazard data, validates the address, and builds era- and county-specific inspection priorities and seller questions into one report -- with anything not yet independently verified clearly labeled, not guessed at.

Get Your First Report Free

This page reports what these four public agencies have published for Orange County as a whole -- it is not an assessment of any specific address or property, and does not replace a licensed home inspection, radon test, or insurance review for a specific home. Data last checked August 10, 2026.