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

57,080 reports match your filters.

Date	Address	Neighborhood	Ward	Status	Response time	Reported via	Source
10/15/2025	2837 N CHRISTIANA AVE	Avondale	35	Completed	7 days	Internet	City 311
10/15/2025	3735 W 70TH PL	West Lawn	23	Completed	8 days	Phone Call	City 311
10/15/2025	3904 W 70TH ST	West Lawn	23	Completed	8 days	Phone Call	City 311
10/15/2025	5322 W DEMING PL	Belmont Cragin	31	Completed	7 days	Internet	City 311
10/15/2025	4828 W ADDISON ST	Portage Park	30	Completed	8 days	Internet	City 311
10/15/2025	1721 S HALSTED ST	Lower West Side	25	Completed	7 days	Phone Call	City 311
10/15/2025	447 W 27TH ST	Bridgeport	11	Completed	6 days	Phone Call	City 311
10/15/2025	5755 W SCHOOL ST	Portage Park	30	Completed	8 days	Internet	City 311
10/15/2025	216 E 109TH ST	Roseland	9	Completed	7 days	Phone Call	City 311
10/15/2025	10637 S PEORIA ST	Washington Heights	21	Completed	7 days	Phone Call	City 311
10/15/2025	5841 N SPAULDING AVE	North Park	39	Completed	9 days	Internet	City 311
10/15/2025	1501 W ERIE ST	West Town	1	Completed	7 days	Internet	City 311
10/15/2025	1712 N NASHVILLE AVE	Austin	29	Completed	7 days	Phone Call	City 311
10/15/2025	4023 N KENNETH AVE	Irving Park	45	Completed	8 days	Phone Call	City 311
10/15/2025	4316 S SPAULDING AVE	Brighton Park	12	Completed	5 days	Internet	City 311
10/15/2025	3854 W 109TH PL	Mount Greenwood	19	Completed	8 days	Phone Call	City 311
10/15/2025	3516 W 115TH ST	Mount Greenwood	19	Completed	8 days	Alderman's Office	City 311
10/15/2025	5939 N NORTHWEST HWY	Norwood Park	41	Completed	8 days	Internet	City 311
10/15/2025	3834 W 110TH PL	Mount Greenwood	19	Completed	6 days	Phone Call	City 311
10/15/2025	3300 W ADAMS ST	East Garfield Park	28	Completed	6 days	Phone Call	City 311
10/15/2025	861 W 86TH PL	Auburn Gresham	21	Completed	7 days	Phone Call	City 311
10/15/2025	1535 W BARRY AVE	Lake View	32	Completed	6 days	Mobile Device	City 311
10/15/2025	5000 N MERRIMAC AVE	Jefferson Park	45	Completed	7 days	Phone Call	City 311
10/15/2025	9923 S WASHTENAW AVE	Beverly	19	Completed	5 days	Phone Call	City 311
10/15/2025	3040 W JACKSON BLVD	East Garfield Park	28	Completed	6 days	Internet	City 311

Page 540 of 2,284

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