Hey,
Not sure if you aware of this but local search results do show up if you search this term: ‘web design in vancouver’...but hey thats not what you asked so lets get on with the answer:
Creating citations simply to improve your website ranking will work, but your on-page optimisation needs to be at its best. My first tip would be to fill every citation with as much detail as possible. Make sure you add photos and videos and have a unique description for each citation site, but remember to include your keywords in the description. The Name, Address & Phone Number (NAP) will need to be kept consistent to get the full benefit of creating these citations.
For on-page optimization, I can recommend a few small changes that can go a long way! My first step of advice would be to add a schema markup of your address into the footer of the website. A schema markup allows google to recognise the address as a formatted address, instead of viewing it as a piece of text. Another useful tip is to make sure you are getting the full benefit from your page titles. I tend to structure page titles like this:
target keyword | Business name
so for a web design company in vancouver called Funky web design, I would do something along the lines of this:
Web Design In Vancouver | Funky Web Design
Hope this helps!