Thanks, Sloan, and thank you to our investors and analysts joining us for our first quarter conference call. This quarter, I would like to start with a review of some updates to our strategic priorities for 2019. If you turn to Slide 3, you can see that we are focused on the same initiatives that we spoke about on our fourth quarter call. I am pleased to report that we are on track on each of these key priorities. We remain focused on organic expansion both in our growth and stronghold states. As we have mentioned before, we continue to see a long runway for growth and believe our results this quarter offer further proof of the growth opportunity available to Intermex.
Secondarily, I would like to provide you with a quick update on the new growth initiatives we have highlighted last quarter. As you may recall, we announced our plans to expand into Africa and Canada. We now -- we are now selling wires and processing them from the U.S. outbound to Africa and plan to officially launch our Canada outbound business in the second quarter. We would note that for both of these markets that we are progressing in line with our expectations, but we don't expect any material financial impact for Intermex from Africa inbound or Canada outbound business until 2020.
As a reminder, we believe Africa will represent a market opportunity similar in size to Guatemala. In the case of Canada, we are focused on 4 or 5 of the largest key cities and believe that market opportunity is comparable to the state of Texas.
Lastly, we do not have any incremental update regarding our infrastructure other than to say that Intermex back end is well positioned to support our competitive advantages as well as help grow our profitability and the scale in an efficient way.
Let me now turn to Slide 4 for a high-level review of our quarter against key performance indicators. We are pleased across the board as first quarter 2019 continued to show strong momentum carried through from a successful 2018. Similar to last quarter, we have summarized our results across 4 main categories. First, as you saw in our press release, Intermex had another strong growth quarter with 22% growth in both our top line revenue and adjusted EBITDA. The growth was driven by both our stronghold states as well as our growth states, and we believe our success continues to stem from our differentiated approach and execution in serving our customers and agents. As a reminder, we don't believe that the retail -- that retail ubiquity is the most efficient way to grow revenues. We focus on adding agents based on customer demands and our ability to serve those customers in targeted, local and personal ways.
The ultimate impact of the strategy is that we continue to gain market share and this quarter was consistent with that trend. On that point, let's frame our growth versus the industry. First, we look at the remittance volume in our U.S. to Mexico quarter. Industry grew at about 7.4% in the quarter, whereas Intermex grew at a rate of over 21%, almost 3x the rate of the market. Similarly, Guatemala overall industry volumes grew approximately 9.2%, while Intermex grew at more than twice the rate of the market at 20.4%. The best part about our market share is that we believe a significant amount of future potential for Intermex still is untapped in what we call our growth markets. Lastly, we'd like to note again that we are proud of the value we've delivered for our shareholders as Intermex shares have now appreciated nearly 20% since we were listed on NASDAQ back on July 27, 2018.
Now let's turn to Slide 5 and review key metrics for first quarter. As you saw in our press release, we are pleased with our growth in both revenue and profitability. Starting at the top half of the page, we grew transactions and volumes by 24% and 23%, respectively, over last year, driven by both our expansion but also by healthy growth in the industry, as we have referenced.
On the bottom left, strong volumes resulted in 22% revenue growth over last year. Lastly, on the lower right, we also grew adjusted EBITDA by 22%.
Tony will give some additional color but here, I will note at a high level that we have less operating leverage in first half of 2019 as we had some expenses this year that were front-loaded, which normalize year-over-year in the final 2 quarters. The most important thing to remember is the 22% growth in EBITDA is well within the expectations relative to achieving our 2019 targets.
Turning to Slide 6 before I turn the call over to Tony to review our financials and outlook, let's review our market share position that we've done in previous quarters. Through the first quarter, Intermex continues to expand our market share in both Mexico and Guatemala. As we have shown, Intermex more than doubled its market share to Mexico over the past 4 years and delivered similar growth to Guatemala. We're most focused on the recent trends, however, and we are pleased that we've continued to grow our market share during the first part of 2019. Specifically, we believe our market share in Mexico expanded to 18%. Similarly, in Guatemala, we increased our market share to 25.5%. Additionally, we've made significant increases in our market share in our secondary countries.
While we don't target any specific market share, we are focused on penetrating both our existing and newer growth markets with our service models. We believe these results are proof that Intermex continues to create a value-added proposition through the differentiation of its service.
With that, let me go ahead and turn the call over to Tony to review our financial results in more detail. Tony?