RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4471 locations in the last 30 days (4636 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.

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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/10/20267935 S HERMITAGE AVEAuburn Gresham17Completed1 dayPhone CallCity 311
12/11/20254713 N PAULINA STUptown47Completed1 dayInternetCity 311
8/25/2025723 S LOOMIS STNear West Side34Completed1 dayInternetCity 311
2/12/20265021 S PRAIRIE AVEGrand Boulevard3Completed1 dayInternetCity 311
8/6/20253533 W SHAKESPEARE AVELogan Square35Completed1 dayInternetCity 311
4/8/20261949 W FULLERTON AVELogan Square32Completed1 dayInternetCity 311
11/24/202525 W RANDOLPH STLoop34Completed1 dayMobile DeviceCity 311
2/10/20265420 S NAGLE AVEGarfield Ridge23Completed1 dayInternetCity 311
1/6/20264045 N DAMEN AVENorth Center47Completed1 dayInternetCity 311
2/5/20265205 N LONG AVEJefferson Park45Completed1 dayPhone CallCity 311
1/14/20266243 N LAWNDALE AVENorth Park50Completed1 dayMobile DeviceCity 311
12/17/20254800 W WARWICK AVEPortage Park30Completed1 dayInternetCity 311
3/9/20262743 S CENTRAL PARK AVESouth Lawndale22Completed1 dayPhone CallCity 311
4/19/2026336 W 30TH STArmour Square11Completed1 dayInternetCity 311
4/2/20264423 N PAULINA STUptown47Completed1 dayInternetCity 311
3/4/20265709 W 64TH PLClearing13Completed1 dayInternetCity 311
5/3/20261850 W 61ST STWest Englewood15Completed1 dayInternetCity 311
12/18/20258357 S CONSTANCE AVEAvalon Park8Completed1 dayInternetCity 311
10/30/202530 E OAK STNear North Side42Completed1 dayPhone CallCity 311
2/25/20261653 N TROY STHumboldt Park26Completed1 dayMobile DeviceCity 311
12/2/20259329 S SAGINAW AVECalumet Heights7Completed1 dayMobile DeviceCity 311
4/14/202611004 S SPRINGFIELD AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
1/21/20262956 N HALSTED STLake View44Completed1 dayInternetCity 311
1/6/20265154 N ELSTON AVEForest Glen45Completed1 dayInternetCity 311
4/15/20261252 E 95TH PLPullman8Completed1 dayPhone CallCity 311
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