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

53,164 reports match your filters.

Date	Address	Neighborhood	Ward	Status	Response time	Reported via	Source
8/4/2025	124 N MOZART ST	East Garfield Park	27	Completed	9 days	Phone Call	City 311
8/4/2025	3853 W FILLMORE ST	North Lawndale	24	Completed	7 days	Phone Call	City 311
8/4/2025	2031 N SEDGWICK ST	Lincoln Park	43	Completed	9 days	Internet	City 311
8/4/2025	5524 S HONORE ST	West Englewood	16	Completed	7 days	Phone Call	City 311
8/4/2025	2800 W SEIPP ST	Ashburn	18	Completed	7 days	Internet	City 311
8/4/2025	5114 S HONORE ST	New City	16	Completed	9 days	Internet	City 311
8/4/2025	3037 S BONFIELD ST	Bridgeport	11	Completed	4 days	Phone Call	City 311
8/4/2025	6449 S NORMANDY AVE	Clearing	13	Completed	9 days	Internet	City 311
8/4/2025	5015 N SPRINGFIELD AVE	Albany Park	39	Completed	10 days	Internet	City 311
8/4/2025	816 E PERSHING RD	Oakland	4	Completed	4 days	Internet	City 311
8/4/2025	5010 N SPRINGFIELD AVE	Albany Park	39	Completed	7 days	Internet	City 311
8/4/2025	5010 N SPRINGFIELD AVE	Albany Park	39	Completed	7 days	Internet	City 311
8/4/2025	180 N LASALLE ST	Loop	42	Completed	1 day	Internet	City 311
8/4/2025	6455 S NORMANDY AVE	Clearing	13	Completed	9 days	Internet	City 311
8/4/2025	5913 S SACRAMENTO AVE	Chicago Lawn	15	Completed	7 days	Internet	City 311
8/4/2025	649 E 63RD ST	Woodlawn	20	Completed	8 days	Phone Call	City 311
8/4/2025	6206 N FRANCISCO AVE	West Ridge	50	Completed	7 days	Phone Call	City 311
8/4/2025	5729 W HIGGINS AVE	Jefferson Park	45	Completed	10 days	Phone Call	City 311
8/4/2025	5520 S NEW ENGLAND AVE	Garfield Ridge	13	Completed	10 days	Mobile Device	City 311
8/4/2025	3215 S MAY ST	Bridgeport	11	Completed	4 days	Phone Call	City 311
8/4/2025	5454 W CORTLAND ST	Austin	37	Completed	11 days	Alderman's Office	City 311
8/4/2025	3849 N CHRISTIANA AVE	Irving Park	33	Completed	10 days	Alderman's Office	City 311
8/4/2025	2320 W TOUHY AVE	West Ridge	50	Completed	7 days	Internet	City 311
8/4/2025	11736 S JUSTINE	West Pullman	21	Completed	11 days	Salesforce Mobile App	City 311
8/4/2025	3643 W DIVERSEY AVE	Logan Square	35	Completed	3 days	Phone Call	City 311