RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4408 locations in the last 30 days (4563 reports) · Last sighting 19 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.

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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/6/20264652 W BERTEAU AVEPortage Park45Completed11 daysInternetCity 311
9/6/20265020 S LA CROSSE AVEGarfield Ridge23Completed10 daysMobile DeviceCity 311
9/6/20262537 W PENSACOLA AVENorth Center47Completed12 daysInternetCity 311
9/6/20262643 W CRYSTAL STWest Town26Completed15 daysInternetCity 311
9/6/20265835 W WARWICK AVEPortage Park38Completed4 daysInternetCity 311
9/6/20265928 W WAVELAND AVEPortage Park38Completed4 daysInternetCity 311
9/6/20263722 N NOTTINGHAM AVEDunning38Completed10 daysInternetCity 311
9/6/20264139 N KILPATRICK AVEPortage Park45Completed15 daysInternetCity 311
9/6/202611315 S TRUMBULL AVEMount Greenwood19Completed10 daysMobile DeviceCity 311
9/6/20263429 N NEVA AVEDunning38Completed11 daysInternetCity 311
9/6/20262525 W BRYN MAWR AVELincoln Square40Completed11 daysInternetCity 311
9/6/20263825 N PANAMA AVEDunning38Completed11 daysMobile DeviceCity 311
9/6/20264419 S EMERALD AVENew City15Completed12 daysInternetCity 311
9/6/20263841 W 61ST PLWest Lawn23Completed10 daysMobile DeviceCity 311
9/6/20264514 N MULLIGAN AVEPortage Park38Completed10 daysInternetCity 311
9/6/20261335 W WRIGHTWOOD AVELincoln Park32Completed11 daysMobile DeviceCity 311
9/6/2026219 E 45TH STGrand Boulevard3Completed2 daysInternetCity 311
9/6/20261433 N WELLS STNear North Side2Completed8 daysMobile DeviceCity 311
9/6/2026706 W BELDEN AVELincoln Park43Completed11 daysInternetCity 311
9/5/2026710 W BELDEN AVELincoln Park43Completed11 daysInternetCity 311
9/5/20263641 N WHIPPLE STIrving Park35Completed11 daysMobile DeviceCity 311
9/5/20264516 N MASON AVEPortage Park38Completed12 daysMobile DeviceCity 311
9/5/2026852 N HERMITAGE AVEWest Town1Completed13 daysMobile DeviceCity 311
9/5/20261420 W CHESTNUT STWest Town27Completed12 daysMobile DeviceCity 311
9/5/20264736 N DOVER STUptown46Completed13 daysInternetCity 311
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