Name: Chicago Rat and Rodent Sightings
Creator: RatCity

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

55,474 reports match your filters.

Date	Address	Neighborhood	Ward	Status	Response time	Reported via	Source
9/8/2025	338 W 29TH PL	Armour Square	11	Completed	10 days	Alderman's Office	City 311
9/8/2025	6501 S WHIPPLE ST	Chicago Lawn	15	Completed	9 days	Alderman's Office	City 311
9/8/2025	3117 N ST LOUIS AVE	Avondale	35	Completed	11 days	Phone Call	City 311
9/8/2025	9236 S GREEN ST	Washington Heights	21	Completed	10 days	Mobile Device	City 311
9/8/2025	3448 E 118TH ST	Hegewisch	10	Completed	11 days	Internet	City 311
9/8/2025	5102 W HURON ST	Austin	37	Completed	9 days	Phone Call	City 311
9/8/2025	4908 W CONGRESS PKWY	Austin	29	Completed	11 days	Phone Call	City 311
9/8/2025	5000 N CALIFORNIA AVE	Lincoln Square	40	Completed	11 days	Phone Call	City 311
9/8/2025	7445 N ASHLAND AVE	Rogers Park	49	Completed	10 days	Phone Call	City 311
9/8/2025	29 W LA SALLE DR	Lincoln Park	43	Completed	11 days	Internet	City 311
9/8/2025	2248 N KENMORE AVE	Lincoln Park	43	Completed	9 days	Mobile Device	City 311
9/8/2025	6334 S HOYNE AVE	West Englewood	16	Completed	10 days	Phone Call	City 311
9/8/2025	7728 S MORGAN ST	Auburn Gresham	17	Completed	10 days	Internet	City 311
9/8/2025	6804 S UNION AVE	Englewood	6	Completed	10 days	Internet	City 311
9/8/2025	451 W BELDEN AVE	Lincoln Park	43	Completed	4 days	Internet	City 311
9/8/2025	4230 S GREENWOOD AVE	Kenwood	4	Completed	10 days	Internet	City 311
9/8/2025	4632 S HARDING AVE	Archer Heights	14	Completed	7 days	Alderman's Office	City 311
9/8/2025	2313 N LEAVITT ST	Logan Square	32	Completed	9 days	Phone Call	City 311
9/8/2025	4214 S GREENWOOD AVE	Oakland	4	Completed	10 days	Phone Call	City 311
9/8/2025	2429 W GRENSHAW ST	Near West Side	28	Completed	10 days	Phone Call	City 311
9/8/2025	1401 S AVERS AVE	North Lawndale	24	Completed	9 days	Phone Call	City 311
9/8/2025	5935 N NAGLE AVE	Norwood Park	45	Completed	10 days	Alderman's Office	City 311
9/8/2025	5440 S RUTHERFORD AVE	Garfield Ridge	23	Completed	10 days	Phone Call	City 311
9/8/2025	5919 S HERMITAGE AVE	West Englewood	15	Completed	9 days	Phone Call	City 311
9/8/2025	2916 N KOLMAR AVE	Hermosa	31	Completed	11 days	Phone Call	City 311

Page 306 of 2,219

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