These numbers are surely a reflection of local law-enforcement priorities. Still:
Cities by Drunk-Driving Arrests (rate per 100,000 population)
1) Las Vegas, Nevada: 9,824
2) Austin, Texas: 5,804
3) San Antonio, Texas: 5,181
4) Phoenix, Arizona: 4,607
5) El Paso, Texas: 3,968
6) Nashville, Tennessee: 3,417
7) Oklahoma City, Oklahoma: 2,741
8) Philadelphia, Pennsylvania: 2,622
9) Denver, Colorado: 2,616
10) Houston, Texas: 2,529
Cities by Drunk Driving Arrests (by number of arrests)
1) San Antonio, Texas: 77,357
2) Los Angeles, California: 72,156
3) Phoenix, Arizona: 72,013
4) New York, New York: 65,788
5) Las Vegas, Nevada: 61,278
6) Houston, Texas: 58,064
7) Austin, Texas: 54,087
8) Philadelphia, Pennsylvania: 41,098
9) Chicago, Illinois: 30,452
10) San Diego, California: 28,389
https://www.smartadvocate.com/News/Blog/drunk-driving-arrests-by-city
there doesn't seem to be anything here