RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4227 locations in the last 30 days (4380 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/3/20252532 W ESTES AVEWest Ridge50Completed4 daysPhone CallCity 311
10/3/20251838 N MONTICELLO AVELogan Square26Completed7 daysInternetCity 311
10/3/20253645 N LEAVITT STNorth Center47Completed6 daysMobile DeviceCity 311
10/3/20253755 N OAKLEY AVENorth Center47Completed3 daysMobile DeviceCity 311
10/3/20253241 N SEMINARY AVELake View44Completed4 daysPhone CallCity 311
10/3/20257319 W CLARENCE AVENorwood Park41Completed6 daysMobile DeviceCity 311
10/3/20251538 E 67TH PLSouth Shore5Completed5 daysPhone CallCity 311
10/3/20252243H N GREENVIEW AVELincoln Park2Completed7 daysMobile DeviceCity 311
10/3/20254829 N MONTCLARE AVENorwood Park41Completed6 daysAlderman's OfficeCity 311
10/3/20257047 S CALIFORNIA AVEChicago Lawn17Completed11 daysPhone CallCity 311
10/3/20257207 S CALIFORNIA AVEChicago Lawn18Completed6 daysPhone CallCity 311
10/3/20252525 N CLARKLincoln Park43Completed7 daysSalesforce Mobile AppCity 311
10/3/20258945 S BLACKSTONE AVECalumet Heights8Completed7 daysAlderman's OfficeCity 311
10/3/20252943 N NEENAH AVEBelmont Cragin36Completed6 daysInternetCity 311
10/3/202510046 S FAIRFIELD AVEBeverly19Completed4 daysAlderman's OfficeCity 311
10/3/20254109 N LEAMINGTON AVEPortage Park38Completed7 daysMobile DeviceCity 311
10/3/20257033 S ARTESIAN AVEChicago Lawn17Completed11 daysPhone CallCity 311
10/3/20251728 N TALMAN AVEWest Town26Completed7 daysInternetCity 311
10/3/20252716 W RASCHER AVELincoln Square40Completed11 daysPhone CallCity 311
10/3/2025470 W DEMING PLLincoln Park43Completed7 daysAlderman's OfficeCity 311
10/3/20251861 N BISSELL STLincoln Park43Completed7 daysPhone CallCity 311
10/3/20255859 N OTTAWA AVENorwood Park41Completed6 daysInternetCity 311
10/3/20253570 W LYNDALE STLogan Square35Completed11 daysMobile DeviceCity 311
10/3/20256540 S HOYNE AVEWest Englewood16Completed5 daysMobile DeviceCity 311
10/3/20255939 S PAULINA STWest Englewood15Completed5 daysPhone CallCity 311
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