diff --git a/conn.go b/conn.go
index ffa4e66e..b3bfd06d 100644
--- a/conn.go
+++ b/conn.go
@@ -424,9 +424,6 @@ func (c *Conn) StatementCache() stmtcache.Cache { return c.stmtcache }
 // ConnInfo returns the connection info used for this connection.
 func (c *Conn) ConnInfo() *pgtype.ConnInfo { return c.connInfo }
 
-// ConnString returns the connection string that was used to establish this connection.
-func (c *Conn) ConnString() string { return c.config.ConnString() }
-
 // Config returns config that was used to establish this connection.
 func (c *Conn) Config() *ConnConfig { return c.config }
 
diff --git a/conn_test.go b/conn_test.go
index 5e1cc6a9..72022b21 100644
--- a/conn_test.go
+++ b/conn_test.go
@@ -29,7 +29,6 @@ func TestCrateDBConnect(t *testing.T) {
 	defer closeConn(t, conn)
 
 	assert.Equal(t, connString, conn.Config().ConnString())
-	assert.Equal(t, connString, conn.ConnString())
 
 	var result int
 	err = conn.QueryRow(context.Background(), "select 1 +1").Scan(&result)
@@ -53,7 +52,6 @@ func TestConnect(t *testing.T) {
 	}
 
 	assert.Equal(t, connString, conn.Config().ConnString())
-	assert.Equal(t, connString, conn.ConnString())
 
 	var currentDB string
 	err = conn.QueryRow(context.Background(), "select current_database()").Scan(&currentDB)
diff --git a/pgxpool/pool.go b/pgxpool/pool.go
index 6b0d3bdc..12856244 100644
--- a/pgxpool/pool.go
+++ b/pgxpool/pool.go
@@ -121,6 +121,8 @@ type Config struct {
 	createdByParseConfig bool // Used to enforce created by ParseConfig rule.
 }
 
+func (c *Config) ConnString() string { return c.ConnConfig.ConnString() }
+
 // Connect creates a new Pool and immediately establishes one connection. ctx can be used to cancel this initial
 // connection. See ParseConfig for information on connString format.
 func Connect(ctx context.Context, connString string) (*Pool, error) {
@@ -371,9 +373,6 @@ func (p *Pool) AcquireAllIdle(ctx context.Context) []*Conn {
 	return conns
 }
 
-// ConnString returns the connection string that was used to initialize this pool.
-func (p *Pool) ConnString() string { return p.config.ConnConfig.ConnString() }
-
 // Config returns config that was used to initialize this pool.
 func (p *Pool) Config() *Config { return p.config }
 
diff --git a/pgxpool/pool_test.go b/pgxpool/pool_test.go
index e7132d2c..866460b8 100644
--- a/pgxpool/pool_test.go
+++ b/pgxpool/pool_test.go
@@ -17,7 +17,7 @@ func TestConnect(t *testing.T) {
 	connString := os.Getenv("PGX_TEST_DATABASE")
 	pool, err := pgxpool.Connect(context.Background(), connString)
 	require.NoError(t, err)
-	assert.Equal(t, connString, pool.ConnString())
+	assert.Equal(t, connString, pool.Config().ConnString())
 	pool.Close()
 }