The Innovation of website by local governments can actually be used to improve public services and encourage community participation in development.This study aims to analyze and explain (1) the performance of e-government, (2) participation in infrastructure development, and (3) the influence of the performance of e-government toward public participation in infrastructure development in Sidoarjo. The method used is explanatory approach with a sample of 233 respondents as the users of the local government of Sidoarjo. Analyzing technique used is multiple regression and path analysis. The results showed that the performance of e-government in Sidoarjo district that includes ease of use, usefulness, web interface, a complementary relationship, as well as public services is categorized as good at 68.81%. Public participation in infrastructure development is regarded as medium category, which is 57.12%. The most dominant community participation is information search, supervision; discussion or public consultation; partnership in the provision of funds, energy, and thought. The performance of e-government significantly influences the participation. Gender also directly affects community participation and indirectly affects participation through the use of e-government. Keywords:Performance of e-government, Community participation, Development of infrastructure. ABSTRAKInovasi website oleh pemerintah daerah sesungguhnya dapat digunakan untuk peningkatan pelayanan publik maupun mendorong partisipasi masyarakat dalam pembangunan. Penelitian ini bertujuan untuk menganalisis dan menjelaskan (1) performance e-government, (2) partisipasi masyarakat dalam pembangunan infrastruktur, dan (3) pengaruh performance e-government terhadap partisipasi masyarakat dalam pembangunan infrastruktur di Kabupaten Sidoarjo. Metode penelitian survei ini menggunakan pendekatan eksplanatori dengan sampel sebanyak 233 responden sebagai user website pemerintah daerah Kabupaten Sidoarjo. Teknik penganalisisan yang digunakan adalah analisis Regresi Berganda dan Jalur. Hasil penelitian menyatakan bahwa performance e-government pemerintah Kabupaten Sidoarjo yang meliputi kemudahan dalam menggunakan, kemanfaatan, tampilan web, hubungan yang saling melengkapi, serta layanan masyarakat termasuk kategori baik yaitu sebesar 68,81%. Partisipasi masyarakat dalam pembangunan