Home / States / Pennsylvania / Tredyffrin Township Police Department
Tredyffrin Township Police Department
City agency in Chester, Pennsylvania, United States. Reports crime data to the FBI, and has done since 2024.
- ORI
- PA0151200
- Type
- City
- County
- Chester
- State
- Pennsylvania (PA)
- FBI reporting
- Reporting since 2024-06-01
- Location
- 40.0662, -75.4685
Workforce
As reported to the FBI for 2025, covering a population of 32,112.
| Year | Officers | Civilians | Population served | Per 1,000 |
|---|---|---|---|---|
| 2025 | 45 | 5 | 32,112 | 1.56 |
| 2024 | 42 | 5 | 31,754 | 1.48 |
| 2023 | 42 | 5 | 31,822 | 1.48 |
| 2022 | 42 | 5 | 31,706 | 1.48 |
| 2021 | 42 | 5 | 29,234 | 1.61 |
| 2020 | 42 | 5 | 29,401 | 1.60 |
| 2019 | 41 | 6 | 29,523 | 1.59 |
| 2018 | 42 | 6 | 29,575 | 1.62 |
| 2017 | 42 | 6 | 29,435 | 1.63 |
| 2016 | 42 | 5 | 29,601 | 1.59 |
| 2015 | 41 | 6 | 29,595 | 1.59 |
| 2014 | 41 | 6 | 29,544 | 1.59 |
Officer and civilian counts are full-time employees as filed by the agency in its annual return. A dash means the agency did not report that figure for that year — it does not mean zero.
Assaults on officers
Officers of Tredyffrin Township Police Department assaulted in the line of duty, by the weapon reported, between 1999 and 2025. These are the FBI’s own weapon categories.
| Weapon reported | Officers assaulted |
|---|---|
| Firearm | 1 |
| Knife or other cutting instrument | 0 |
| Hands, fists or feet | 12 |
| Other weapon | 2 |
| Year | Firearm | Knife | Hands, fists, feet | Other |
|---|---|---|---|---|
| 1999 | 1 | 0 | 0 | 0 |
| 2001 | 0 | 0 | 0 | 1 |
| 2002 | 0 | 0 | 3 | 0 |
| 2003 | 0 | 0 | 3 | 1 |
| 2005 | 0 | 0 | 3 | 0 |
| 2007 | 0 | 0 | 1 | 0 |
| 2025 | 0 | 0 | 2 | 0 |
Why there is no single total here. The FBI publishes two breakdowns of the same assaults — by weapon, and by how the officer was deployed — and nationally they do not agree: the assignment columns sum to 1,869,337 and the weapon columns to 1,744,852, and the two match on only 84% of rows. Police Census publishes the weapon breakdown as the FBI states it rather than picking one basis and calling it ‘the total’. The file’s ‘cleared’ column is not shown either: it sums higher than the assaults themselves, so it is not a subset of what is above and we have not established what it counts.
This comes from the FBI’s Law Enforcement Officers Killed and Assaulted programme. Despite the name, the file carries no officers-killed data at all — those columns are empty for every agency and every year, so this page reports assaults only and says nothing about officers killed.
LEOKA identifies agencies by name, not by the ORI used elsewhere on this site. A row was attached only where exactly one agency in that state reduces to the same base name; 78.7% of rows matched nationwide. An agency with nothing here may have reported no assaults, or may be one of the names that did not match — Police Census does not guess which.
Also policing Chester
Jurisdictions overlap. These agencies are also recorded against the same county, so a single address may be covered by more than one of them.
Source
Agency identity, type, jurisdiction, coordinates and reporting status are as published by the FBI Crime Data Explorer, agency record PA0151200. Police Census reproduces these values without adjustment. Where the FBI publishes nothing, this page says so rather than estimating.
Believe something on this page is wrong? Tell us — every correction is published on Corrections.