RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4486 locations in the last 30 days (4653 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/7/20262952 N KENNETH AVEHermosa31Completed0 daysMobile DeviceCity 311
3/19/20261625 W NORTH SHORE AVERogers Park49Completed0 daysMobile DeviceCity 311
4/30/20263711 N NOTTINGHAM AVEDunning38Completed0 daysMobile DeviceCity 311
2/20/20266353 S WASHTENAW AVEChicago Lawn16Completed0 daysInternetCity 311
4/30/20264141 W 56TH PLWest Elsdon13Completed0 daysMobile DeviceCity 311
1/9/20265542 S PULASKI RDWest Elsdon13Completed0 daysMobile DeviceCity 311
12/9/20254163 W BARRY AVEAvondale31Completed0 daysInternetCity 311
12/14/20256247 N NAPER AVENorwood Park45Completed0 daysInternetCity 311
11/19/20251049 N PAULINA STWest Town1Completed0 daysInternetCity 311
11/20/2025323 W EVERGREEN AVENear North Side2Completed0 daysInternetCity 311
4/1/20265407 W CORTEZ STAustin37Completed0 daysInternetCity 311
12/16/20251732 W 89TH STAuburn Gresham18Completed0 daysPhone CallCity 311
5/18/20267700 S MARSHFIELD AVEAuburn Gresham17Completed0 daysPhone CallCity 311
2/5/20262618 S HARDING AVESouth Lawndale22Completed0 daysInternetCity 311
1/21/20267147 S BENNETT AVESouth Shore5Completed0 daysInternetCity 311
4/17/202615 N LONG AVEAustin37Completed0 daysInternetCity 311
12/2/20256309 S SPAULDING AVEChicago Lawn14Completed0 daysPhone CallCity 311
4/7/20262811 W WALTON STWest Town36Completed0 daysInternetCity 311
7/7/202611132 S ST LOUIS AVEMount Greenwood19Completed0 daysPhone CallCity 311
4/23/20265365 N NORMANDY AVENorwood Park41Completed0 daysInternetCity 311
12/2/20256309 S SPAULDING AVEChicago Lawn14Completed0 daysPhone CallCity 311
4/30/20263425 W 37TH PLBrighton Park12Completed0 daysMobile DeviceCity 311
4/26/20262101 N FREMONT STLincoln Park43Completed0 daysMobile DeviceCity 311
12/17/20254624 W HOMER STBelmont Cragin36Completed0 daysMobile DeviceCity 311
3/19/20262030 W 23RD STLower West Side25Completed0 daysInternetCity 311
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