RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4678 locations in the last 30 days (4837 reports) · Last sighting 11 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/10/20265947 N OZANAM AVENorwood Park41Completed11 daysPhone CallCity 311
8/12/20266523 N NIXON AVENorwood Park41Completed20 daysInternetCity 311
11/2/20255500 N MULLIGAN AVEJefferson Park41Completed2 daysInternetCity 311
11/1/20255436 N NASHVILLE AVENorwood Park41Completed3 daysMobile DeviceCity 311
10/31/20256543 W HIGGINS AVENorwood Park41Completed3 daysMobile DeviceCity 311
10/31/20257740 W COLUMBIA AVEEdison Park41Completed4 daysAlderman's OfficeCity 311
8/6/20265155 N NAGLE AVEJefferson Park41Completed15 daysMobile DeviceCity 311
10/31/20256753 W FOSTER AVENorwood Park41Completed4 daysInternetCity 311
7/1/20266477 N NEWARK AVENorwood Park41Completed6 daysMobile DeviceCity 311
10/14/20266964 W IMLAY STNorwood Park41Open—Phone CallCity 311
6/30/20266031 N NAVARRE AVENorwood Park41Completed2 daysPhone CallCity 311
3/1/20265248 N NASHVILLE AVENorwood Park41Completed1 dayMobile DeviceCity 311
10/14/20265515 N EAST RIVER RDO'Hare41Open—InternetCity 311
3/26/20265521 N NOTTINGHAM AVENorwood Park41Completed1 dayMobile DeviceCity 311
3/13/20267340 N HARLEM AVEEdison Park41Completed3 daysPhone CallCity 311
9/17/20256560 N NORTHWEST HWYEdison Park41Completed8 daysInternetCity 311
11/12/20257282 W EVERELL AVENorwood Park41Completed1 dayMobile DeviceCity 311
6/30/20266027 N NAVARRE AVENorwood Park41Completed2 daysPhone CallCity 311
9/14/20257818 W ARDMORE AVENorwood Park41Completed10 daysInternetCity 311
9/14/20257822 W ARDMORE AVENorwood Park41Completed10 daysInternetCity 311
11/18/20254925 N NEWCASTLE AVENorwood Park41Completed1 dayPhone CallCity 311
9/12/20255309 N DELPHIA AVEO'Hare41Completed12 daysInternetCity 311
9/16/20257106 W TALCOTT AVENorwood Park41Completed9 daysPhone CallCity 311
9/12/20255300 N ORIOLE AVENorwood Park41Completed12 daysPhone CallCity 311
6/27/20266001 W GUNNISON STPortage Park41Completed5 daysMobile DeviceCity 311
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