Postgres reports that a relation does not exist, but the table exists

I have an express app that I am connecting to my Postgres db. Here is my code:

var express = require('express');
var app = express();
var pg = require('pg').native;
var connectionString = process.env.DATABASE_URL || 'postgres://localhost:5432/isx';
var port = process.env.PORT || 3000;
var client;


app.use(express.bodyParser());

client = new pg.Client(connectionString);
client.connect();

app.get('/users', function(req, res) {
  'use strict';
  console.log('/users');
  var query = client.query('SELECT * FROM users');
  query.on('row', function(row, result) {
    result.addRow(row);
  });
  query.on('end', function(result) {
    console.log(result);
    res.json(result);
  });
});

I go to my local Postgres and look at the isx db and here are the tables available.

          List of relations
 Schema |   Name   | Type  |  Owner   
--------+----------+-------+----------
 public | projects | table | postgres
 public | users    | table | postgres
(2 rows)

But when I try to hit the users table I get this error Error: relation "users" does not exist.

The relation users exists. I have checked and I am connected to the instance of Postgres that I thought I was connected to. What else can I be missing?