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
8/6/2025	6805 W 63RD ST	Clearing	13	Completed	9 days	Internet	City 311
8/6/2025	6801 W 63RD ST	Clearing	13	Completed	9 days	Internet	City 311
8/6/2025	5424 S NAGLE AVE	Garfield Ridge	23	Completed	9 days	Mobile Device	City 311
8/6/2025	4229 N KEYSTONE AVE	Irving Park	39	Completed	12 days	Phone Call	City 311
8/6/2025	1718 N CENTRAL PARK AVE	Humboldt Park	26	Completed	7 days	Mobile Device	City 311
8/6/2025	2420 S SAWYER AVE	South Lawndale	25	Completed	1 day	Mobile Device	City 311
8/6/2025	5520 W HUTCHINSON ST	Portage Park	38	Completed	14 days	Mobile Device	City 311
8/6/2025	4879 N MASON AVE	Jefferson Park	45	Completed	12 days	Internet	City 311
8/6/2025	4901 W FULLERTON AVE	Belmont Cragin	31	Completed	12 days	Phone Call	City 311
8/6/2025	1451 S PULASKI RD	North Lawndale	24	Completed	7 days	Phone Call	City 311
8/6/2025	820 W BELLE PLAINE AVE	Uptown	46	Completed	14 days	Phone Call	City 311
8/6/2025	2923 W BALMORAL AVE	Lincoln Square	39	Completed	13 days	Mobile Device	City 311
8/6/2025	5401 N VIRGINIA AVE	Lincoln Square	39	Completed	12 days	Internet	City 311
8/6/2025	2923 W BALMORAL AVE	Lincoln Square	39	Completed	12 days	Internet	City 311
8/6/2025	3520 N FREMONT ST	Lake View	44	Completed	12 days	Phone Call	City 311
8/6/2025	3255 N PAULINA ST	Lake View	32	Completed	12 days	Internet	City 311
8/6/2025	6629 S ELLIS AVE	Woodlawn	20	Completed	8 days	Phone Call	City 311
8/6/2025	5530 S PRAIRIE AVE	Washington Park	20	Completed	7 days	Internet	City 311
8/6/2025	1531 W 90TH ST	Washington Heights	21	Completed	9 days	Internet	City 311
8/6/2025	3630 N SOUTHPORT AVE	Lake View	44	Completed	12 days	Internet	City 311
8/6/2025	6200 S CHAMPLAIN AVE	Woodlawn	20	Completed	8 days	Internet	City 311
8/6/2025	5918 N SHERIDAN RD	Edgewater	48	Completed	12 days	Mobile Device	City 311
8/6/2025	5423 N MAGNET AVE	Jefferson Park	45	Completed	12 days	Internet	City 311
8/6/2025	4108 N CENTRAL AVE	Portage Park	38	Completed	14 days	Phone Call	City 311
8/6/2025	2720 N WAYNE AVE	Lincoln Park	32	Completed	12 days	Phone Call	City 311