ZIP 78663 vs ZIP 78657

This side-by-side compares ZIP 78663 (Round Mountain, TX) and ZIP 78657 (Horseshoe Bay, TX) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 78663 has a population of 746 at 2 people per square mile, while ZIP 78657 has 5,509 at 54 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 78663 reports a median household income of $168,125 against $91,452 in ZIP 78657, with per-capita income of $100,059 vs $68,540. The share of adults holding a bachelor's degree or higher is 42.7% in 78663 and 42.9% in 78657. Poverty rate reads 3.6% vs 4.9%, and unemployment 0.4% vs 2.3% — 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 $356,800 in 78663 versus $483,200 in 78657, with median rent of $1,688 and $1,492 per month respectively. Homeownership rate is 83.0% vs 81.3%. 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.