| City | Districts all passing | Districts all exact | Exact comparisons | Rows above threshold | Worst count error | Worst share error |
|---|---|---|---|---|---|---|
| Chicago | 50 of 50 | 21 of 50 | 331 of 500 | 0 | 0.242% | 0.050 pp |
| Los Angeles | 12 of 15 | 0 of 15 | 103 of 135 | 3 | 0.442% | 0.200 pp |
| New York City | 48 of 51 | 48 of 51 | 244 of 255 | 5 | 1.236% | 0.200 pp |
Validation Results
District-level 2020 block validation across Chicago, Los Angeles, and New York City
This section summarizes official_vs_blocks only. Each city page uses the current validation outputs in census-2020-validation/results/{city}/official_vs_blocks.csv, links back to the local benchmark and assignment inputs, and shows the selected comparison columns rather than the full raw schema.
City Comparison
Average Error By Variable Across Cities
| City | Variable | Family | Average absolute error |
|---|---|---|---|
| Chicago | Total population | Count | 0.029% |
| Chicago | Voting age population | Count | 0.025% |
| Chicago | Hispanic share of total population | Share | 0.007 pp |
| Chicago | Non-Hispanic White share of total population | Share | 0.006 pp |
| Chicago | Non-Hispanic White share of voting age population | Share | 0.005 pp |
| Chicago | Non-Hispanic Black share of total population | Share | 0.005 pp |
| Chicago | Hispanic share of voting age population | Share | 0.004 pp |
| Chicago | Non-Hispanic Black share of voting age population | Share | 0.004 pp |
| Chicago | Non-Hispanic Asian share of voting age population | Share | 0.003 pp |
| Chicago | Non-Hispanic Asian share of total population | Share | 0.003 pp |
| Los Angeles | Total population | Count | 0.108% |
| Los Angeles | White share of voting age population | Share | 0.027 pp |
| Los Angeles | Latino/Hispanic share of total population | Share | 0.027 pp |
| Los Angeles | Asian share of total population | Share | 0.027 pp |
| Los Angeles | White share of total population | Share | 0.020 pp |
| Los Angeles | Asian share of voting age population | Share | 0.020 pp |
| Los Angeles | Latino/Hispanic share of voting age population | Share | 0.013 pp |
| Los Angeles | Black share of voting age population | Share | 0.007 pp |
| Los Angeles | Black share of total population | Share | 0.000 pp |
| New York City | Voting age population | Count | 0.052% |
| New York City | Total population | Count | 0.042% |
| New York City | Asian share of voting age population | Share | 0.008 pp |
| New York City | Latino/Hispanic share of voting age population | Share | 0.006 pp |
| New York City | Black share of voting age population | Share | 0.000 pp |