Help me understand the US streets in 1930 census

Hi everyone, I have this address from a Milwaukee cemetery, the person is maybe my gggfather. If I read it right it's "3511, 37th street"(No. means North? Or number?) I wanted to verify this by finding this address in a 1930 census (he died in 1934). I'm not from US and I'm really struggling to understand the US street system and how the collection of that census was performed.

I found this website to help me narrow the results

https://stevemorse.org/census/unified.html?year=1930

so I put there the address and as suggested, I took a look on the Google Map to see which street crosses it. The closest is Keefe Ave so I set it as such. It gave me 2 results.

https://i.imgur.com/mEtT0dE.png

I went through both of them and nothing. Actually the house numbers on 37th street weren't even close to 3511 in those reports, they were around 1000 - 1500.

What am I doing wrong? How the street numbering works in the US? Also just out of curiosity - why weren't addresses indexed in Family Search?