| Route 37 | 
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|
|
| System | Southern District | 
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| Operator | SEPTA City Transit Division | 
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| Former operator(s) | Philadelphia Transportation Company | 
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| Locale | Philadelphia, Pennsylvania, U.S. | 
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| Start | Broad Street and Snyder Avenue (Snyder station) | 
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| Via | Passyunk Avenue, Lindbergh Boulevard, and Industrial Highway (PA 291) | 
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| End | Chester Transit Center | 
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| Length | 14.8 miles (23.8 km) | 
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|
| Frequency | 25 minutes (base), 10 minutes (am peak), 15 minutes (pm peak), hourly (night) | 
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| Weekend frequency | same, without peak additions | 
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| Ridership | 3,303 (daily ridership 2019) | 
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| Annual patronage | 990,900 (2019) | 
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| Timetable | Route 37 schedule | 
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|  | 
Route 37 is a bus and former streetcar route operated by the Southeastern Pennsylvania Transportation Authority (SEPTA) in Philadelphia, Pennsylvania.