Table 1.

2023 Rural–Urban Continuum Codes.

Code Number	In Metro Area	Adjacent to Metro Area	Population Size
1	Yes	N/A	≥1,000,000
2	Yes	N/A	250,000–1,000,000
3	Yes	N/A	<250,000
4	No	Yes	≥20,000
5	No	No	≥20,000
6	No	Yes	5000–19,999
7	No	No	5000–19,999
8	No	Yes	<5000
9	No	No	<5000