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Compare · AL · TN

ZIP 35203 vs ZIP 37919

Birmingham, AL compared to Knoxville, TN on twelve public-records dimensions sourced from EPA, FEMA, USDA, FBI, NCES, and county records. Each cell links to the per-ZIP topic page where the source citation and refresh cadence live.

Last verified 2026-09-24 · methodology

ZIP 35203

Birmingham, AL

Alabama

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ZIP 37919

Knoxville, TN

Tennessee

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Verdict

On the 3 of 12 dimensions that carry measured values today, radon differs — 35203 is Zone 2, 37919 is Zone 1 (lower is less predicted potential); 2025 median air quality is Moderate in 35203 (AQI 52) and Good in 37919 (AQI 46); neither water system reports a health-based violation in 3 years. zipradar names no overall winner: the other 9 dimensions are not populated yet, and these three are county-level indicators rather than address-level readings. Open either ZIP below for the source and refresh date behind each number.

Side by side

Dimensions populate live as ingestion reaches each source. Every row will link to the primary regulator.

Alabama context

Tornado risk + rural water systems

Alabama sits in Dixie Alley with peak tornado activity in March-April. Coastal Mobile/Baldwin counties also carry FEMA-mapped storm-surge zones. Many rural water systems serve <500 connections, making EPA SDWIS compliance variability higher than in metro counties.

Alabama state page →

Tennessee context

Tornadoes, flood (TVA tributaries), karst sinkholes

Tennessee carries inland FEMA AE zones along TVA-managed Tennessee, Cumberland, Holston rivers. Karst geology creates documented sinkhole risk in middle TN. Tornado risk concentrates in Memphis + Jackson + Nashville corridors.

Tennessee state page →

Read more on cross-ZIP comparisons

Editorial deep-dives that help when reading two places side-by-side — what each data layer actually proves, and what it doesn't.

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