RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4544 locations in the last 30 days (4698 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/27/20268201 S SOUTH SHORE DRSouth Chicago7Completed5 daysPhone CallCity 311
8/27/20261062 N PAULINA STWest Town1Completed14 daysInternetCity 311
8/27/20262415 W PALMER STLogan Square1Completed14 daysAlderman's OfficeCity 311
8/27/2026235 W VAN BUREN STLoop34Completed5 daysPhone CallCity 311
8/27/20264835 N WINCHESTER AVELincoln Square47Completed13 daysMobile DeviceCity 311
8/27/20265425 W POTOMAC AVEAustin37Completed14 daysPhone CallCity 311
8/27/20264127 N LAWLER AVEPortage Park38Completed14 daysInternetCity 311
8/27/20261131 W DRUMMOND PLLincoln Park43Completed12 daysMobile DeviceCity 311
8/27/20264008 S BRIGHTON PLBrighton Park12Completed8 daysMobile DeviceCity 311
8/27/20266607 S ST LOUIS AVEChicago Lawn14Completed12 daysMobile DeviceCity 311
8/27/20264144 N MELVINA AVEPortage Park38Completed13 daysMobile DeviceCity 311
8/27/20266608 S WINCHESTER AVEWest Englewood16Completed14 daysPhone CallCity 311
8/27/20265055 S LAMON AVEGarfield Ridge23Completed13 daysInternetCity 311
8/27/20263057 N ASHLAND AVELake View32Completed14 daysMobile DeviceCity 311
8/27/20261545 W BARRY AVELake View32Completed14 daysMobile DeviceCity 311
8/27/20261535 W BARRY AVELake View32Completed14 daysMobile DeviceCity 311
8/27/20263113 S PRINCETON AVEArmour Square11Completed15 daysPhone CallCity 311
8/27/20261142 W WOLFRAM STLake View44Completed6 daysInternetCity 311
8/27/20261119 S CENTRAL PARK AVENorth Lawndale24Completed14 daysPhone CallCity 311
8/27/20262123 N MELVINA AVEBelmont Cragin36Completed12 daysPhone CallCity 311
8/27/20264837 N CENTRAL AVEJefferson Park45Completed14 daysMobile DeviceCity 311
8/27/20265240 S LOTUS AVEGarfield Ridge23Completed13 daysMobile DeviceCity 311
8/27/2026712 N LECLAIRE AVEAustin37Completed14 daysPhone CallCity 311
8/27/20262615 W 23RD PLSouth Lawndale25Completed15 daysInternetCity 311
8/27/20265738 S PRINCETON AVEEnglewood20Completed13 daysPhone CallCity 311
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