ZIP 06340 vs ZIP 06320

This side-by-side compares ZIP 06340 (Groton, CT) and ZIP 06320 (New London, CT) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 06340 has a population of 31,242 at 527 people per square mile, while ZIP 06320 has 27,617 at 1,926 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 06340 reports a median household income of $81,792 against $59,170 in ZIP 06320, with per-capita income of $47,211 vs $33,704. The share of adults holding a bachelor's degree or higher is 39.2% in 06340 and 28.7% in 06320. Poverty rate reads 12.7% vs 21.5%, and unemployment 4.6% vs 6.0% — 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 $294,700 in 06340 versus $253,300 in 06320, with median rent of $1,599 and $1,341 per month respectively. Homeownership rate is 44.5% vs 36.1%. 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.