RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4536 locations in the last 30 days (4690 reports) · Last sighting yesterday

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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.

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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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/1/20261326 N CLEAVER STWest Town1Completed3 daysInternetCity 311
12/21/20251326 S MICHIGAN AVENear South Side3Completed0 daysInternetCity 311
7/31/20261326 S MICHIGAN AVENear South Side3Completed10 daysPhone CallCity 311
3/26/20261326 S TRIPP AVENorth Lawndale24Completed4 daysInternetCity 311
10/21/20251326 W 18TH STLower West Side25Completed7 daysMobile DeviceCity 311
4/30/20261326 W CHASE AVERogers Park49Completed0 daysPhone CallCity 311
4/30/20261326 W CHASE AVERogers Park49Completed1 dayPhone CallCity 311
8/20/20251326 W MADISON STNear West Side27Completed15 daysMobile DeviceCity 311
6/16/20261326 W WINNEMAC AVEUptown47Completed7 daysMobile DeviceCity 311
12/31/20251327 E 52ND STHyde Park4Completed2 daysInternetCity 311
10/24/20251327 E 72ND STSouth Shore8Completed3 daysMobile DeviceCity 311
5/20/20261327 E 72ND STSouth Shore8Completed7 daysMobile DeviceCity 311
7/14/20261327 N AUSTIN BLVDAustin29Completed9 daysPhone CallCity 311
5/26/20261327 N MASSASOIT AVEAustin29Completed6 daysPhone CallCity 311
8/8/20251327 N RIDGEWAY AVEHumboldt Park36Completed12 daysAlderman's OfficeCity 311
12/27/20251327 W 18TH PLLower West Side25Completed2 daysMobile DeviceCity 311
12/13/20251327 W 18TH STLower West Side25Completed2 daysInternetCity 311
7/7/20261327 W COLUMBIA AVERogers Park49Completed8 daysPhone CallCity 311
7/29/20261328 N HARDING AVEHumboldt Park36Completed15 daysMobile DeviceCity 311
9/22/20261328 N MILWAUKEE AVEWest Town1Completed7 daysPhone CallCity 311
11/4/20251328 S SAWYER AVENorth Lawndale24Completed2 daysMobile DeviceCity 311
7/2/20261328 S SPRINGFIELD AVENorth Lawndale24Completed6 daysInternetCity 311
11/3/20251328 S SPRINGFIELD AVENorth Lawndale24Completed2 daysInternetCity 311
5/21/20261328 W 78TH STAuburn Gresham17Completed1 dayPhone CallCity 311
6/10/20261328 W 97TH PLWashington Heights21Completed1 dayInternetCity 311
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