RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4402 locations in the last 30 days (4569 reports) · Last sighting 12 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.

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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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/15/20263215 N OTTAWA AVEDunning38Completed13 daysMobile DeviceCity 311
7/15/2026433 W ALDINE AVELake View44Completed12 daysInternetCity 311
7/15/20267900 S CALIFORNIA AVEAshburn18Completed13 daysPhone CallCity 311
7/15/20265330 S WELLS STFuller Park20Completed2 daysPhone CallCity 311
7/15/20265300 S PRINCETON AVEFuller Park20Completed15 daysPhone CallCity 311
7/15/20262015 N FREMONT STLincoln Park43Completed7 daysMobile DeviceCity 311
7/15/20265919 S HERMITAGE AVEWest Englewood15Completed5 daysPhone CallCity 311
7/15/20261729 N MARSHFIELD AVEWest Town32Completed12 daysInternetCity 311
7/15/20263011 W 19TH STSouth Lawndale24Completed2 daysMobile DeviceCity 311
7/15/20262116 W BELLE PLAINE AVENorth Center47Completed13 daysInternetCity 311
7/15/20266245 N NAPER AVENorwood Park45Completed7 daysPhone CallCity 311
7/15/20267113 N RIDGE AVERogers Park49Completed9 daysInternetCity 311
7/15/20266134 S CAMPBELL AVEChicago Lawn16Completed6 daysPhone CallCity 311
7/15/20264521 W MAYPOLE AVEWest Garfield Park28Completed8 daysMobile DeviceCity 311
7/15/20264035 N KENNETH AVEIrving Park45Completed14 daysInternetCity 311
7/15/20262704 W MEDILL AVELogan Square1Completed14 daysAlderman's OfficeCity 311
7/15/2026724 W 116TH PLWest Pullman21Completed8 daysInternetCity 311
7/15/20264937 N KILDARE AVEAlbany Park39Completed8 daysMobile DeviceCity 311
7/15/20262827 N LINCOLN AVELake View32Completed12 daysMobile DeviceCity 311
7/15/20265410 W CORNELIA AVEPortage Park30Completed9 daysPhone CallCity 311
7/15/20266818 N MENDOTA AVEForest Glen45Completed13 daysAlderman's OfficeCity 311
7/15/20261132 N MAYFIELD AVEAustin29Completed13 daysPhone CallCity 311
7/15/20263804 W 110TH STMount Greenwood19Completed9 daysAlderman's OfficeCity 311
7/15/20263941 W 64TH STWest Lawn23Completed7 daysAlderman's OfficeCity 311
7/15/20263941 W 64TH STWest Lawn23Completed7 daysAlderman's OfficeCity 311
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