All ten, ranked on the quiet score. The leaders are in Co-op City and out on the eastern edge, with two Riverdale blocks among them, and Fieldston Road scores 28.
Start With the Bad News
The Bronx posts the lowest quiet average of the five boroughs. Its ranked streets average 35 on the quiet score, and it holds 55 blocks scoring 85 or higher against Staten Island's 322. That is a ranking rather than a raw rate. Per home, Bronx and Manhattan blocks file noise complaints at close to the same rate, and the Bronx finishes last because its blocks rank below others of the same street type, which the quiet neighborhoods guide works through borough by borough.
Every list of quiet Bronx streets we have seen, including our own earlier ones, was working from the wrong end of the borough.
The quiet exists. It is just not where the reputation puts it, and there is less of it than anyone assumes.
The Ten
Ranked on the quiet score, which counts 311 noise complaints against the homes and businesses on the street. Exactly ten Bronx streets reach 97 or better.
1. Bartow Avenue, Co-op City. Scores 100 on quiet, 100 on cleanliness and 86 on traffic safety, and grades 84 overall. This is a superblock, not a street: 19 buildings holding 11,042 homes, designed in the sixties to keep through-traffic outside the development, and the complaint records are still registering that design half a century later. 2. West 255th Street, Riverdale. Also 100 on quiet, on 18 buildings and 265 homes, and it grades 72 because there is almost nothing within walking distance of it. 3. Claremont Parkway, central Bronx. Quiet is not the same as safe: this block scores 100 on quiet and 0 on traffic safety. 4. The Esplanade, east Bronx. 99 on quiet, 93 on cleanliness, 88 on traffic safety, and it grades 81, among the highest overall grades in the borough. 5. Narragansett Avenue, east Bronx. 99 on quiet with traffic safety at 90, across 87 small buildings. 6. Arlington Avenue, Riverdale. 99 on quiet and 99 on traffic safety, the best crossing record on this list. 7. Tiemann Avenue, northeast Bronx. 99 on quiet and 97 on cleanliness, on 339 buildings. 8. Knapp Street, northeast Bronx. 98 on quiet and 19 on traffic safety, with only 33 homes on it. 9. Irvine Street, Hunts Point. 97 on quiet against 22 on cleanliness, on 21 buildings. 10. Robertson Place, Country Club. 97 on quiet and 86 on traffic safety, at the far eastern edge of the borough.
Most of this list sits east of the Bronx River, two entries are in Riverdale, and the quietest address in the borough is a housing development in Co-op City.
The Best-Graded Blocks Are Somewhere Else
Quiet is one score of nine, and the Bronx blocks that grade best overall are not all on the list above. Bergen Avenue in Mott Haven grades 76, near the top of the borough alongside The Esplanade at 81 and Bartow Avenue at 84, and it is a single development: 5 buildings holding 829 homes. West 177th Street in Morris Heights grades 70, well above the Bronx average, with 94 on quiet, and it is a thin block, 4 buildings and 40 homes, in a neighborhood that appears on no list of this kind.
Riverdale, Honestly
This is where the received wisdom breaks. Palisade Avenue scores 93 on quiet and earns its reputation. Everything around it does not. Independence Avenue scores 50, Riverdale Avenue 58, Sycamore Avenue 46, and Fieldston Road, the address most often named as the borough's quietest, scores 28.
City Island runs into the same problem. City Island Avenue scores 43 on quiet. It is a destination street and its noise record reads like one.
The Takeaway
The quietest Bronx blocks are in planned housing developments and out on the borough's eastern edges, and the reputations point at Riverdale. That gap is why the exact street matters more here than the neighborhood does. Two blocks in the same ZIP code routinely sit fifty points apart on quiet, and the borough average will not warn you which one you are looking at, so look the street itself up before you decide anything.
Scores are built from 311 complaints, HPD violations, NYPD crash records, MTA stop locations, DOHMH food permits, and the street tree census, divided by the homes and businesses on the street, updated weekly.