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

53,243 reports match your filters.

Date	Address	Neighborhood	Ward	Status	Response time	Reported via	Source
8/7/2025	2318 S TRUMBULL AVE	South Lawndale	22	Completed	7 days	Phone Call	City 311
8/7/2025	2045 N LINCOLN PARK WEST	Lincoln Park	43	Completed	13 days	Phone Call	City 311
8/7/2025	1631 N CLAREMONT AVE	West Town	32	Completed	14 days	Phone Call	City 311
8/7/2025	3671 N ELSTON AVE	Irving Park	33	Completed	11 days	Mobile Device	City 311
8/7/2025	227 S LEAVITT ST	Near West Side	27	Completed	11 days	Phone Call	City 311
8/7/2025	5641 S KEELER AVE	West Elsdon	13	Completed	15 days	Alderman's Office	City 311
8/7/2025	540 W DICKENS AVE	Lincoln Park	43	Completed	13 days	Phone Call	City 311
8/7/2025	6632 S GREENWOOD AVE	Woodlawn	20	Completed	7 days	Phone Call	City 311
8/7/2025	2640 N LAWNDALE AVE	Logan Square	35	Completed	12 days	Phone Call	City 311
8/7/2025	2406 S CHRISTIANA AVE	South Lawndale	25	Completed	11 days	Phone Call	City 311
8/7/2025	6709 W 64TH PL	Clearing	13	Completed	13 days	Internet	City 311
8/7/2025	6709 W 64TH PL	Clearing	13	Completed	13 days	Internet	City 311
8/7/2025	912 W 50TH ST	New City	20	Completed	6 days	Phone Call	City 311
8/7/2025	6477 S NORMANDY AVE	Clearing	13	Completed	6 days	Internet	City 311
8/7/2025	6467 S NORMANDY AVE	Clearing	13	Completed	6 days	Internet	City 311
8/7/2025	4217 N OAKLEY AVE	North Center	47	Completed	13 days	Internet	City 311
8/7/2025	4806 S LAPORTE AVE	Garfield Ridge	22	Completed	13 days	Phone Call	City 311
8/7/2025	7337 N HONORE ST	Rogers Park	49	Completed	8 days	Phone Call	City 311
8/7/2025	200 E OHIO ST	Near North Side	2	Completed	14 days	Alderman's Office	City 311
8/7/2025	6700 W 64TH ST	Clearing	13	Completed	13 days	Internet	City 311
8/7/2025	4249 N MONTICELLO AVE	Irving Park	33	Completed	11 days	Internet	City 311
8/7/2025	6700 W 63RD ST	Clearing	13	Completed	11 days	Internet	City 311
8/7/2025	6600 W 64TH ST	Clearing	13	Completed	13 days	Internet	City 311
8/7/2025	5553 S MCVICKER AVE	Garfield Ridge	13	Completed	14 days	Internet	City 311
8/7/2025	6600 W 64TH PL	Clearing	13	Completed	13 days	Internet	City 311