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

55,474 reports match your filters.

Date	Address	Neighborhood	Ward	Status	Response time	Reported via	Source
9/8/2025	2600 N BURLING ST	Lincoln Park	43	Completed	11 days	Alderman's Office	City 311
9/8/2025	2125 N MENARD AVE	Belmont Cragin	36	Completed	10 days	Alderman's Office	City 311
9/8/2025	9439 S VERNON AVE	Roseland	8	Completed	10 days	Phone Call	City 311
9/8/2025	6732 N ODELL AVE	Edison Park	41	Completed	9 days	Mobile Device	City 311
9/8/2025	2120 N SEDGWICK ST	Lincoln Park	43	Completed	11 days	Phone Call	City 311
9/8/2025	24 E 91ST ST	Chatham	6	Completed	10 days	Phone Call	City 311
9/8/2025	1920 W WARNER AVE	North Center	47	Completed	10 days	Internet	City 311
9/8/2025	3638 W 71ST ST	West Lawn	23	Completed	10 days	Phone Call	City 311
9/8/2025	1023 N KEYSTONE AVE	Humboldt Park	37	Completed	9 days	Phone Call	City 311
9/8/2025	5301 N BROADWAY	Edgewater	48	Completed	7 days	Mobile Device	City 311
9/8/2025	9204 S HALSTED ST	Washington Heights	21	Completed	10 days	Phone Call	City 311
9/8/2025	5935 N NAGLE AVE	Norwood Park	45	Completed	14 days	Phone Call	City 311
9/8/2025	2747 S AVERS AVE	South Lawndale	22	Completed	14 days	Alderman's Office	City 311
9/8/2025	1925 W BALMORAL AVE	Lincoln Square	40	Completed	11 days	Internet	City 311
9/8/2025	1900 N MOZART ST	Logan Square	26	Completed	11 days	Alderman's Office	City 311
9/8/2025	2600 N MEADE AVE	Belmont Cragin	30	Completed	14 days	Alderman's Office	City 311
9/8/2025	419 W WELLINGTON AVE	Lake View	44	Completed	14 days	Phone Call	City 311
9/8/2025	6065 N NEWBURG AVE	Norwood Park	45	Completed	10 days	Alderman's Office	City 311
9/8/2025	3658 W MCLEAN AVE	Logan Square	26	Completed	11 days	Internet	City 311
9/8/2025	7150 S JEFFERY AVE	South Shore	5	Completed	10 days	Mobile Device	City 311
9/8/2025	7130 S JEFFERY AVE	South Shore	5	Completed	10 days	Mobile Device	City 311
9/8/2025	3900 W 63RD PL	West Lawn	23	Completed	10 days	Phone Call	City 311
9/8/2025	2224 W MEDILL AVE	Logan Square	32	Completed	9 days	Phone Call	City 311
9/8/2025	2101 E 99TH ST	South Deering	7	Completed	11 days	Phone Call	City 311
9/8/2025	5221 W FLETCHER ST	Belmont Cragin	30	Completed	14 days	Alderman's Office	City 311

Page 309 of 2,219

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