Highest climate-risk ZIP codes in Pennsylvania
Top 25 highest FEMA NRI climate-risk counties in Pennsylvania (one representative ZIP per county). #1 is 19124 (Philadelphia) at score 99.6. Compare hazard exposure on US5.
FEMA’s National Risk Index is published at the county level on US5, so every ZIP in the same county shares the same composite score. This board shows one representative ZIP per county (the most populous code in that county) ranked by NRI — a relative signal of natural-hazard exposure for planning and insurance context.
Highest county scores on this board: Philadelphia County (19124) at 99.6; Allegheny County (15237) at 98.1; Montgomery County (19446) at 96.8.
Open a representative ZIP for flood, wildfire, and hurricane component scores, plus a plain-language risk summary.
Open any ZIP for a full demographics, income, and housing profile, or return to the Pennsylvania state page for the complete ZIP table.
Ranked counties (representative ZIP)
FEMA NRI is county-level data. Each row shows the most populous ZIP in that county as a representative entry.
| # | ZIP | City | County | NRI risk score | Population | Income | Home value |
|---|---|---|---|---|---|---|---|
| 1 | 19124 | Philadelphia | Philadelphia County | 99.6 | 70,763 | $46,100 | $155,000 |
| 2 | 15237 | Franklin Park | Allegheny County | 98.1 | 44,161 | $108,538 | $306,900 |
| 3 | 19446 | Lansdale | Montgomery County | 96.8 | 61,608 | $103,875 | $415,400 |
| 4 | 17603 | Lancaster | Lancaster County | 95.0 | 66,788 | $77,156 | $244,500 |
| 5 | 19020 | Eddington | Bucks County | 94.8 | 57,079 | $80,158 | $344,400 |
| 6 | 18102 | Allentown | Lehigh County | 93.9 | 51,315 | $40,681 | $146,600 |
| 7 | 19082 | Millbourne | Delaware County | 92.9 | 41,875 | $55,551 | $155,400 |
| 8 | 19601 | Reading | Berks County | 92.7 | 36,493 | $41,133 | $110,700 |
| 9 | 19320 | Coatesville | Chester County | 91.9 | 55,671 | $88,852 | $302,700 |
| 10 | 18702 | Wilkes-Barre | Luzerne County | 91.6 | 42,120 | $54,892 | $115,700 |
| 11 | 17112 | Linglestown | Dauphin County | 91.1 | 38,970 | $101,784 | $290,400 |
| 12 | 17331 | Hanover | York County | 90.4 | 55,374 | $76,661 | $228,700 |
| 13 | 18042 | Easton | Northampton County | 90.0 | 44,797 | $75,806 | $205,900 |
| 14 | 18411 | Chinchilla | Lackawanna County | 89.9 | 23,076 | $96,471 | $274,200 |
| 15 | 15601 | Greensburg | Westmoreland County | 87.8 | 55,670 | $75,369 | $209,400 |
| 16 | 17050 | New Kingstown | Cumberland County | 86.2 | 42,547 | $111,834 | $350,800 |
| 17 | 17901 | Pottsville | Schuylkill County | 85.3 | 22,557 | $61,632 | $130,600 |
| 18 | 18360 | Arlington Heights | Monroe County | 85.1 | 29,790 | $69,413 | $286,200 |
| 19 | 16509 | Erie | Erie County | 84.1 | 28,133 | $68,880 | $207,500 |
| 20 | 15301 | Washington | Washington County | 83.1 | 50,180 | $69,275 | $205,800 |
| 21 | 15401 | Uniontown | Fayette County | 82.2 | 30,230 | $52,051 | $151,600 |
| 22 | 17042 | Cornwall | Lebanon County | 79.9 | 39,626 | $76,399 | $222,200 |
| 23 | 17701 | Williamsport | Lycoming County | 79.6 | 43,169 | $52,770 | $176,200 |
| 24 | 16001 | Shanor-Northvue | Butler County | 79.3 | 39,733 | $61,325 | $191,400 |
| 25 | 17801 | Snydertown | Northumberland County | 79.2 | 16,229 | $57,341 | $140,800 |
Frequently asked questions
Which areas in Pennsylvania have the highest climate or disaster risk?
FEMA NRI scores are county-level on US5. Philadelphia County ranks near the top at 99.6 (representative ZIP 19124). Higher scores indicate greater relative natural-hazard exposure.
How does US5 rank ZIP codes in Pennsylvania?
We rank one representative ZIP per county (highest population in the county) by FEMA NRI composite score from high to low. NRI is county-level data, so all ZIPs in a county share the same score.
Where can I explore all ZIP codes in Pennsylvania?
Visit the Pennsylvania state page for the full ZIP table, demographics summary, and sortable income/housing columns.