Some numbers (based on Census data) which show zipcodes with the highest concentration of singles. The data is ordered by the largest highest ratio of singles between 20 to 49 years.

Top 20 zipcodes near Saint Louis, Missouri with Highest Concentration of Male Singles Per Female Single

Number of single men for every single woman

Place	20 to 49 years	20 to 24 years	25 to 29 years	30 to 34 years	35 to 39 years	40 to 44 years	45 to 49 years
(62049) Hillsboro	11.03	12.0	12.43	16.85	10.64	15.6	4.98
(62233) Chester	5.9	2.47	6.17	7.57	10.63	6.25	10.23
(62274) Pinckneyville	4.47	4.57	2.73	2.49	21.78	7.87	4.73
(63628) Bonne Terre	3.37	3.5	2.36	7.08	6.16	1.82	3.51
(63640) Farmington	2.34	1.52	2.56	2.16	6.84	2.21	3.25
(62801) Centralia	1.81	1.48	2.1	2.12	1.8	2.36	1.24
(62062) Maryville	1.73	2.87	1.59	3.43	0.48	0.5	2.33
(63389) Winfield	1.64	1.04	1.18	1.85	2.21	2.54	2.75
(62298) Waterloo	1.62	1.6	1.9	2.13	1.74	0.89	1.87
(62203) East Saint Louis	1.52	1.45	1.61	2.41	1.66	0.78	1.64
(62012) Brighton	1.51	1.58	1.51	1.29	2.57	0.7	1.61
(63069) Pacific	1.47	1.35	1.16	1.22	1.45	2.63	1.88
(63051) House Springs	1.46	1.98	1.47	1.31	0.69	1.11	1.87
(62232) Caseyville	1.44	2.48	0.87	0.22	1.88	1.68	2.59
(62286) Sparta	1.38	1.76	0.45	1.54	1.57	2.84	0.87
(62024) East Alton	1.38	1.17	2.24	0.34	1.46	1.5	2.37
(63020) De Soto	1.36	1.38	1.27	2.13	0.84	1.57	1.29
(63090) Washington	1.34	1.5	1.36	1.82	0.71	1.16	1.42
(63147) Saint Louis	1.34	2.02	2.54	0.97	1.0	0.71	0.96
(63049) High Ridge	1.3	1.25	1.87	1.1	1.17	1.43	0.92

Top 20 zipcodes near Saint Louis with Highest Concentration of Feale Singles Per Male Single

Number of single women for every single man

Place	20 to 49 years	20 to 24 years	25 to 29 years	30 to 34 years	35 to 39 years	40 to 44 years	45 to 49 years
(63106) Saint Louis	2.34	2.17	4.94	5.62	2.18	1.23	1.1
(62056) Litchfield	1.71	0.91	3.43	2.02	0.84	1.21	4.83
(63133) Saint Louis	1.61	1.64	1.03	1.91	1.13	3.16	2.56
(63005) Chesterfield	1.57	1.31	2.31	1.43	5.38	0.97	1.54
(63040) Grover	1.57	1.16	5.2	0.69	2.53	0.41	3.75
(63138) North County	1.56	1.54	1.43	1.62	1.93	1.33	1.59
(63121) Normandy	1.51	1.53	1.27	1.36	1.82	1.93	1.33
(63134) Berkeley	1.48	0.87	2.34	1.9	1.41	1.2	2.33
(63136) Jennings	1.47	1.4	1.13	1.73	1.42	1.49	1.86
(63038) Glencoe	1.46	2.79	1.3	0.81	0.26	0.88	1.4
(63137) North County	1.45	1.25	0.95	0.87	2.96	2.11	1.45
(62207) Alorton	1.45	1.69	2.27	1.32	1.22	1.28	1.14
(62034) Glen Carbon	1.38	1.23	0.99	0.52	2.31	3.0	3.62
(63034) Florissant	1.37	0.95	1.43	1.42	1.93	2.84	1.28
(62204) Washington Park	1.36	1.74	1.36	1.23	1.63	0.86	1.72
(62088) Staunton	1.33	1.56	0.53	1.46	2.56	2.46	3.18
(63135) Ferguson	1.32	1.02	1.14	1.52	1.38	1.75	1.58
(63115) Saint Louis	1.28	0.83	1.3	1.49	1.32	1.84	1.54
(62095) Wood River	1.27	1.95	0.92	0.69	0.97	2.68	1.17
(63124) Ladue	1.22	2.37	0.6	2.77	0.62	1.93	0.39