RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4641 locations in the last 30 days (4799 reports) · Last sighting 17 hours ago

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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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/13/2026865 E 87TH PLChatham8Completed1 dayAlderman's OfficeCity 311
6/3/2026944 E 84TH STChatham8Completed1 dayPhone CallCity 311
4/29/2026720 E 92ND PLChatham8Completed2 daysPhone CallCity 311
6/26/20261648 E 84TH STAvalon Park8Completed5 daysInternetCity 311
6/3/2026440 E 88TH PLChatham8Completed0 daysInternetCity 311
7/29/20269243 S DOBSON AVEBurnside8Completed1 dayPhone CallCity 311
6/2/20267735 S RIDGELAND AVESouth Shore8Completed2 daysPhone CallCity 311
3/16/20261519 E 84TH PLAvalon Park8Completed3 daysPhone CallCity 311
4/9/20268005 S MERRILL AVESouth Chicago8Completed1 dayPhone CallCity 311
4/20/2026922 E 81ST STChatham8Completed2 daysAlderman's OfficeCity 311
7/20/2026602 E 88TH PLChatham8Completed7 daysPhone CallCity 311
6/25/20267919B S DOBSON AVEChatham8Completed6 daysPhone CallCity 311
7/22/20261400 E 71ST PLSouth Shore8Completed7 daysInternetCity 311
7/10/20268837 S HARPER AVECalumet Heights8Completed4 daysPhone CallCity 311
2/25/20268838 S HARPER AVECalumet Heights8Completed1 dayAlderman's OfficeCity 311
7/9/20268024 S MARYLAND AVEChatham8Completed5 daysInternetCity 311
8/31/20258139 S INGLESIDE AVEChatham8Completed9 daysPhone CallCity 311
7/9/20261033 E 100TH PLPullman8Completed5 daysMobile DeviceCity 311
9/3/20267952 S CLYDE AVESouth Chicago8Completed14 daysPhone CallCity 311
4/9/20267846 S GREENWOOD AVEGreater Grand Crossing8Completed1 dayInternetCity 311
8/26/20269618 S GREENWOOD AVEPullman8Completed7 daysMobile DeviceCity 311
10/28/20258538 S CHAPPEL AVEAvalon Park8Completed1 dayPhone CallCity 311
11/7/2025900 E 103RD STPullman8Completed3 daysPhone CallCity 311
10/24/20251327 E 72ND STSouth Shore8Completed3 daysMobile DeviceCity 311
4/20/20267322 S DANTE AVESouth Shore8Completed2 daysPhone CallCity 311
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