diff --git a/src/main/java/com/seoultech/sanEseo/post/adapter/PostController.java b/src/main/java/com/seoultech/sanEseo/post/adapter/PostController.java
index a2ac909..9923170 100644
--- a/src/main/java/com/seoultech/sanEseo/post/adapter/PostController.java
+++ b/src/main/java/com/seoultech/sanEseo/post/adapter/PostController.java
@@ -3,14 +3,13 @@
 import com.seoultech.sanEseo.global.config.web.AuthMember;
 import com.seoultech.sanEseo.global.config.web.LoginMember;
 import com.seoultech.sanEseo.global.response.ApiResponse;
+import com.seoultech.sanEseo.like.application.service.LikeService;
 import com.seoultech.sanEseo.post.application.service.AddPostRequest;
 
 import com.seoultech.sanEseo.post.application.service.GetPostResponse;
 import com.seoultech.sanEseo.post.application.service.PostService;
 import com.seoultech.sanEseo.post.application.service.UpdatePostRequest;
 import com.seoultech.sanEseo.post.domain.Post;
-import com.seoultech.sanEseo.post_district.application.service.GetPostDistrictResponse;
-import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
@@ -20,9 +19,11 @@
 @RequestMapping("/api/posts")
 public class PostController {
     private final PostService postService;
+    private final LikeService likeService;
 
-    public PostController(PostService postService) {
+    public PostController(PostService postService, LikeService likeService) {
         this.postService = postService;
+        this.likeService = likeService;
     }
 
     @PostMapping
@@ -52,7 +53,9 @@ public ResponseEntity<?> deletePost(@LoginMember AuthMember authMember, @PathVar
     @GetMapping("/by-district-prefix")
     public ResponseEntity<?> getPostsByDistrictPrefix(@RequestParam String districtName) {
         List<Post> posts = postService.findPostsByDistrictNameStart(districtName);
-        return ApiResponse.ok("입력된 자치구를 포함하는 게시글 반환 완료.", posts);
+        List<Post> filterPostsByCategory = likeService.filterPostsByCategory(posts, 1);
+
+        return ApiResponse.ok("입력된 자치구를 포함하는 게시글 반환 완료", filterPostsByCategory);
     }
 
 }
diff --git a/src/main/java/com/seoultech/sanEseo/post/adapter/PostRepository.java b/src/main/java/com/seoultech/sanEseo/post/adapter/PostRepository.java
index fdb72a0..c8f2bba 100644
--- a/src/main/java/com/seoultech/sanEseo/post/adapter/PostRepository.java
+++ b/src/main/java/com/seoultech/sanEseo/post/adapter/PostRepository.java
@@ -7,6 +7,4 @@
 
 public interface PostRepository extends JpaRepository<Post, Long> {
     boolean existsByTitleAndDescription(String title, String description);
-
-    List<Post> findByMemberId(Long memberId);
 }
diff --git a/src/main/java/com/seoultech/sanEseo/post_district/application/service/PostDistrictService.java b/src/main/java/com/seoultech/sanEseo/post_district/application/service/PostDistrictService.java
index 6b1d1be..63d2f77 100644
--- a/src/main/java/com/seoultech/sanEseo/post_district/application/service/PostDistrictService.java
+++ b/src/main/java/com/seoultech/sanEseo/post_district/application/service/PostDistrictService.java
@@ -43,14 +43,6 @@ public PostDistrictService(DistrictPort districtPort, PostDistrictPort postDistr
         this.postPort = postPort;
     }
 
-    public void createPostDistrictRelation(Post post, Long districtId) {
-        District district = districtPort.findById(districtId);
-        PostDistrict postDistrict = new PostDistrict(post, district);
-
-        postDistrictPort.save(postDistrict);
-
-    }
-
     public List<GetPostDistrictResponse> getPostDistrict(Long districtId) {
         List<PostDistrict> postDistricts = postDistrictPort.findByDistrictId(districtId);
         // 해당 post의 image를 가져오기 위해 imageService를 사용