CountyCaseField Ledger contour markCountyCase
Allegheny County, Pennsylvania context mapThe county is outlined and labeled within PA using 2025 Census TIGER geometry.Allegheny County
Census TIGER/Line 2025 county geometry.

Residence and crash location

552

Deaths of county residents, CDC WONDER, 2018-2024

n=552 · window 2018-2024
493

Deaths from crashes in this county, FARS, 2018-2024

n=493 · window 2018-2024
-59

Crash-location fatalities minus resident deaths, 2018-2024

n=493 · window 2018-2024

location minus resident A signed difference between the two source counts.

Keep in view: This difference is not a count of people traveling into or out of the county and does not identify where county residents crashed.

Reported crash flags

7.9%

Share of PennDOT reported crashes flagged drinking driver, 2016-2025

n=9035 · window 2016-2025

near near the state share

2.6%

Share of PennDOT reported crashes flagged drugged driver, 2016-2025

n=2960 · window 2016-2025

below below the state share

13.7%

Share of PennDOT reported crashes flagged distracted, 2016-2025

n=15756 · window 2016-2025

well above well above the state share

51.8%

Share of PennDOT reported crashes flagged aggressive driving, 2016-2025

n=59483 · window 2016-2025

near near the state share

17.9%

Share of PennDOT reported crashes flagged speeding related, 2016-2025

n=20527 · window 2016-2025

below below the state share

17.1%

Share of PennDOT reported crashes flagged mature driver, 2016-2025

n=19676 · window 2016-2025

near near the state share

14.5%

Share of PennDOT reported crashes flagged young driver, 2016-2025

n=16589 · window 2016-2025

below below the state share

2.7%

Share of PennDOT reported crashes flagged deer related, 2016-2025

n=3073 · window 2016-2025

well below well below the state share

1.6%

Share of PennDOT reported crashes flagged work zone, 2016-2025

n=1863 · window 2016-2025

above somewhat above the state share

95% range: 1.6%–1.7%
0.3%

Share of PennDOT reported crashes flagged school zone, 2016-2025

n=315 · window 2016-2025

below somewhat below the state share

95% range: 0.2%–0.3%

Keep in view: These reported-crash flags can overlap and do not measure how often individual drivers engage in a behavior or establish why a crash happened.

Crash severity

5.8

Share of reported crashes that were fatal: 5.8 per 1,000, 2016-2025

n=669 · window 2016-2025

well below well below the state rate

9.0%

Suspected-serious share of the source-defined reported-crash injury universe, 2016-2025

n=3949 · window 2016-2025

near near the state share

Keep in view: The share of reported crashes that were fatal does not measure a county's danger, a traveler's risk, or the cause of any crash.

Fatal-crash timing

37.5%

Share of FARS fatal crashes that were night, 2015-2024

n=247 · window 2015-2024

near broadly near the state share

95% range: 33.9%–41.2%
32.9%

Share of FARS fatal crashes that were weekend, 2015-2024

n=217 · window 2015-2024

near broadly near the state share

95% range: 29.4%–36.6%
21.9%

Share of FARS fatal crashes that were impaired involved, 2015-2024

n=144 · window 2015-2024

below somewhat below the state share

95% range: 18.9%–25.2%

Keep in view: These time and involvement shares describe fatal crashes in FARS and do not measure an individual's risk or establish why a crash occurred.

Population context

85.0

Annual reported crashes per 10,000 residents (2024 ACS population), 2025

n=10528 · window 2025

near near the state rate

88.2

Five-year annualized reported crashes per 10,000 residents (2024 ACS population), 2021-2025

n=54617 · window 2021-2025

near near the state rate

Keep in view: Crashes per resident use population as context, not miles traveled, and do not measure an individual resident's driving risk.

Truck-crash context

0.77

Truck-crash share relative to overall reported-crash share, 2015-2023

n=5135 · window 2015-2023

below somewhat below the state level

95% range: 0.75–0.79

Keep in view: This location quotient compares shares of reported crashes and does not measure truck-driver fault, carrier safety, or roadway danger.

Long-run trajectory

10,528

Annual Reportable Crashes, 2025

n=10528 · window 2025
89.6

Annual Crash Index (2006=100), 2025

n=10528 · window 2025

below somewhat below the state index

95% range: 87.3–92.0
84.1

Crash Index (2006=100), 2020

n=9880 · window 2020

below below the state index

93.0

Mean Recovery Index, 2021-2025

n=54617 · window 2021-2025

near near the state index

5.8

Mean Absolute County-State Index Gap, 2006-2025

n=11748 · window 2006-2025

well below well below the state level

Keep in view: An indexed trajectory compares reported-crash counts with a county's own 2006 base and does not measure safety, danger, or individual risk.

Source notices