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Objective To understand the current situation of chronic kidney disease in the elderly in urban communities and to explore its influencing factors. Methods The data were based on the National Basic Public Health Service Project in Qingyang District, Chengdu in 2019. The physical examination data of the elderly aged 65 years or older were used and estimated glomerular filtration rate (eGFR) was calculated from serum creatinine using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. CKD was defined as eGFR less than 60 mL/min per 1.73 m². Kruskal-Wallis H test, Chi-square test and linear trend Chi-square test were used to compare the differences in the prevalence of CKD among the elderly in urban communities with different characteristics, and the influencing factors of CKD among the elderly in urban communities were explored by multivariate logistic regression model. Results Among the 23 851 elderly in urban communities, the prevalence of CKD was 9.8%, and the awareness rate was 6.1%. Multivariate logistic regression analysis showed that age 80 years or older (OR = 9.874, 95% CI :8. 576-11.369, P < 0.001), smoking (OR = 1.221, 95% CI: 1.031-1.447, P = 0.021), dyslipidemia (OR = 1.400, 95% CI: 1.274-1.539, P <0.001), hypertension (OR = 1.711, 95 % CI: 1.546-1.894, P < 0.001) and diabetes (OR = 1.151, 95 % CI: 1.043-1.27, P = 0.005) were positively related to CKD. Higher education (OR = 0.644, 95% CI: 0.526-0.787, P < 0.001) and everyday physical activity (OR = 0.647, 95% CI :0.571-0.732, P <0.001) were negatively related to CKD. Conclusion The prevalence of CKD in the elderly in urban communities is high, but the awareness rate is low. To optimize the management of CKD in urban communities and aim at lowering the development of CKD and slowing its progression. [ABSTRACT FROM AUTHOR]