ZIP 51106 vs ZIP 51105

This side-by-side compares ZIP 51106 (Sioux City, IA) and ZIP 51105 (Sioux City, IA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 51106 has a population of 26,544 at 329 people per square mile, while ZIP 51105 has 10,216 at 649 per square mile. That difference in population size and density alone reshapes how every other metric should be interpreted — a higher-income ZIP with 1,200 residents behaves very differently from one with 45,000.

On income and education, ZIP 51106 reports a median household income of $78,434 against $51,786 in ZIP 51105, with per-capita income of $39,145 vs $24,008. The share of adults holding a bachelor's degree or higher is 28.6% in 51106 and 7.8% in 51105. Poverty rate reads 13.6% vs 21.6%, and unemployment 4.1% vs 6.2% — these four fields alone drive most of the difference in the scorecard grades you will see for each ZIP.

Housing separates these two ZIPs further: median home value sits at $200,200 in 51106 versus $96,200 in 51105, with median rent of $1,117 and $859 per month respectively. Homeownership rate is 70.2% vs 48.2%. When reading the comparison table below, focus on paired metrics rather than single winners — a ZIP with lower home values and lower income is not strictly "worse" if rent-to-income ratios and commute times land in the same zone. Every value is pulled from the exact same ACS table so the two columns are genuinely comparable.