Data Journalist Breakdown
The Bottom Line: Chatham scores well overall because it combines relatively accessible veterinary care, manageable pet costs, and a climate that supports regular outdoor time. It stands above most cities in our national comparison, but it still has tradeoffs worth checking before you move.
Chatham ranks #479 out of 4,184 analyzed cities nationwide. Inside IL, it currently sits #20 out of 224 cities in the representative state set.
Chatham has a fairly balanced climate by our scoring model, with 218 walkable days per year. Most owners can expect standard seasonal adjustments rather than year-round weather disruption.
Vet access looks comparatively stable in Chatham. Clinic density is healthy enough to avoid the sharpest access problems, and local pricing is not wildly out of step with national norms.
Housing and policy matter here too. Recurring pet surcharges are relatively modest compared with higher-friction rental markets, which helps keep ongoing housing costs more predictable. State-level preemption reduces the risk of city-by-city breed bans, which is especially relevant for pit bull-type dogs, rottweilers, and other commonly targeted breeds.
Chatham sits in sangamon County, and that local context matters because city-level pet friendliness often swings on county housing pressure, clinic supply, and climate. We estimate roughly 0.46 dog parks or off-leash areas serving the local market, which is one reason the community score lands at A-. Hot conditions drive the walking pattern here, with 36 very hot days and 41 very cold days in the annual weather window.