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

57,251 reports match your filters.

Date	Address	Neighborhood	Ward	Status	Response time	Reported via	Source
10/17/2025	1900 W 63RD ST	West Englewood	16	Completed	6 days	Phone Call	City 311
10/17/2025	11373 S RIDGEWAY AVE	Mount Greenwood	19	Completed	10 days	Phone Call	City 311
10/17/2025	4730 W GLADYS AVE	Austin	28	Completed	6 days	Phone Call	City 311
10/17/2025	5455 N SAYRE AVE	Norwood Park	41	Completed	6 days	Internet	City 311
10/17/2025	4531 N ASHLAND AVE	Uptown	47	Completed	6 days	Phone Call	City 311
10/17/2025	2123 W WARNER AVE	North Center	47	Completed	3 days	Internet	City 311
10/17/2025	6517 N BOSWORTH AVE	Rogers Park	49	Completed	5 days	Alderman's Office	City 311
10/17/2025	818 E 88TH ST	Chatham	8	Completed	4 days	Alderman's Office	City 311
10/17/2025	6049 W MELROSE ST	Dunning	30	Completed	7 days	Phone Call	City 311
10/17/2025	2451 N MASON AVE	Belmont Cragin	30	Completed	7 days	Phone Call	City 311
10/17/2025	4736 W FLOURNOY ST	Austin	24	Completed	7 days	Phone Call	City 311
10/17/2025	7842 S SAGINAW AVE	South Shore	7	Completed	5 days	Internet	City 311
10/17/2025	8045 S SANGAMON ST	Auburn Gresham	17	Completed	6 days	Phone Call	City 311
10/17/2025	5036 N ALBANY AVE	Albany Park	33	Completed	7 days	Internet	City 311
10/17/2025	4525 N ASHLAND AVE	Uptown	47	Completed	6 days	Phone Call	City 311
10/17/2025	4535 N ASHLAND AVE	Uptown	47	Completed	6 days	Alderman's Office	City 311
10/17/2025	4537 N ASHLAND AVE	Uptown	47	Completed	6 days	Alderman's Office	City 311
10/17/2025	4541 N ASHLAND AVE	Uptown	47	Completed	6 days	Alderman's Office	City 311
10/17/2025	3914 W 84TH ST	Ashburn	18	Completed	7 days	Phone Call	City 311
10/17/2025	4532 N GREENVIEW AVE	Uptown	47	Completed	7 days	Alderman's Office	City 311
10/17/2025	4530 N GREENVIEW AVE	Uptown	47	Completed	7 days	Alderman's Office	City 311
10/17/2025	4536 N GREENVIEW AVE	Uptown	47	Completed	3 days	Alderman's Office	City 311
10/17/2025	5105 W HENDERSON ST	Portage Park	31	Completed	6 days	Phone Call	City 311
10/17/2025	5338 N VIRGINIA AVE	Lincoln Square	39	Completed	7 days	Phone Call	City 311
10/17/2025	6421 N PAULINA ST	Rogers Park	40	Completed	6 days	Phone Call	City 311

Page 555 of 2,291

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