I live in one of the biggest cities in the US. I have not observed as many JWs in Field Service as I did when I was growing up. Within the last 10 years I used to see Spanish speaking Witnesses in my former neighborhood. I live in a better neighborhood now, where there are mostly condos and houses, and I never see Witnesses in my neighborhood (not sure if the types of homes are a factor). There is a Kingdom Hall within about five miles of where I live. Are JWs as active in Field Service nowadays?
Also, I sometimes see "sisters" walking around in a business district (presumably in Field Service), but I never see them offering the magazines to anyone. Does that actually count as "preaching" if they don't talk to people?